The lights in the television studio were always a bit too bright for Werner Klemperer. He sat there, years after the bunkers of Stalag 13 had been dismantled, looking every bit the refined conductor and intellectual he truly was. The interviewer reached under the desk and pulled out a small, velvet-lined box. When he opened it, a single piece of glass caught the studio light.

It was the monocle. Werner’s eyes crinkled behind his actual spectacles, a soft, knowing smile spreading across his face as he reached out to touch the prop. He told the host that people often forgot the monocle wasn’t held on by a wire or a clip. It was just glass and the strength of his own facial muscles.

He began to recount a specific Friday evening in the late 1960s. The air conditioning on the set had failed, and the heat under the stage lights was oppressive. The cast was exhausted. They were filming a scene where Colonel Klink was supposed to be at his most intimidating, delivering a blistering reprimand to the bumbling Sergeant Schultz.

Werner remembered that he wanted to play the moment with a cold, Prussian steel. He wanted the audience to see why Klink was in charge, even if he was a fool. John Banner, the man behind Schultz, stood across from him, already sweating through his heavy wool uniform. John was a dear friend, but that day, the heat had made everyone prickly.

The director called for quiet. Werner straightened his tunic, sucked in his gut, and prepared to unleash a verbal assault that would make the rafters shake. He leaned in close to John’s face, so close he could see the beads of perspiration on Banner’s upper lip. He took a deep breath, tightening his cheek to lock that glass circle into his eye socket.

The camera pushed in for a tight close-up of Klink’s fury.

Everything was perfectly aligned for a masterpiece of comedic tension.

Then, the muscle in his cheek gave a tiny, involuntary shudder.

The monocle didn’t just fall. It didn’t simply drop to the floor like it usually did during a botched take. Because of the sweat on Werner’s face and the sheer force of the tension he was holding in his brow, the glass piece acted like a pressurized spring.

It launched. It flew out of his eye socket with the velocity of a small pebble from a slingshot. It sailed through the air, glinted briefly in the spotlight, and struck John Banner square in the middle of his forehead with a distinct, audible “tink.”

For a second, the set was deathly silent.

Werner stood there, one eye wide and bulging, the other squinting as if he’d been struck by a sudden stroke. He was still in his “intimidating” pose, finger pointed at John’s chest, but the sudden absence of the glass made him look less like a commandant and more like a confused owl.

John Banner didn’t move. He stood perfectly still, his eyes slowly crossing as he tried to look at the spot on his forehead where the monocle had impacted. The glass had tumbled down the front of John’s uniform and, by some miracle of physics, had snagged perfectly in the fold of his belt.

The silence stretched for three seconds, four seconds. Werner tried to keep his face stiff. He tried to think of his father, the great conductor Otto Klemperer. He tried to think of the serious stage roles he had performed in New York. He tried to maintain the dignity of the Klemperer name.

But then he looked at John’s face. John’s belly began to quiver. It started as a low, tectonic shift beneath the wool of the Sergeant’s tunic. A tiny, high-pitched wheeze escaped John’s throat—a sound that was the polar opposite of the deep, booming voice he used for the show.

Werner felt the first crack in his own resolve. He tried to turn the laugh into a cough, but it was too late. He let out a sharp, barking snort.

That was the signal. John Banner exploded. He doubled over, his loud, infectious “Ho-ho-ho” filling the soundstage. It wasn’t the scripted laugh of a jolly sergeant; it was the hysterical, tear-filled laughter of a man who had been standing in a 90-degree room for twelve hours.

The director, who had been ready to wrap the day, dropped his headset onto the monitors and simply put his head in his hands. The camera operator was shaking so hard the frame was bouncing up and down.

Werner reached out to steady himself on a prop desk, but he was laughing so hard he couldn’t speak. He kept trying to apologize, but every time he looked at the monocle dangling from John’s belt, he would lose it all over again.

“John,” Werner gasped, gasping for air between fits of giggles. “I nearly blinded the best Sergeant in the German army!”

John Banner wiped tears from his eyes, his face turning a bright shade of crimson. “Werner,” he shouted back, “if you had hit me any harder, I would have had to report a localized air raid!”

The crew, who had been moving heavy lights and hauling cables all day, suddenly found their second wind. The exhaustion vanished, replaced by that rare, frantic joy that only happens on a set when something goes perfectly wrong. They spent the next twenty minutes just trying to reset, but every time Werner tried to put the monocle back in his eye, the sound of the “tink” hitting John’s forehead echoed in their minds.

They eventually finished the scene, but they had to do it with Werner’s back to the camera for half of it because he couldn’t look at John without his lip trembling.

Back in the interview, decades later, Werner laughed as he told the story. He explained that those moments were the reason the show worked. They weren’t just actors playing parts in a sitcom; they were a group of people who truly loved the absurdity of their situation. He mentioned how John Banner, a man who had lost so much in the war himself, had the greatest capacity for joy of anyone he had ever known.

He picked up the monocle from the box on the table and held it between his thumb and forefinger. He told the host that even then, thirty years later, his cheek muscle still remembered the exact tension required to hold it.

He didn’t put it in, though. He just set it back down carefully. He said that some things are better left in the past, especially if you value the safety of the person sitting across from you.

The audience laughed, but there was a warmth in the room that hadn’t been there before. It was the reminder that even in the middle of a high-pressure Hollywood production, a little piece of flying glass could bring the whole world to a standstill for a good, long laugh.

It’s funny how the smallest things are often the ones that stick with us the longest, isn’t it?

Do you have a favorite memory of the chemistry between Klink and Schultz?