I was recording my podcast recently, and my producer patched through a surprise caller.

It was a radio host, and he threw me completely off balance with an unexpected question.

He didn’t ask about the legendary finale of MAS*H.

He didn’t ask about the dramatic surgeries.

He asked, “Alan, of all your castmates, who was the absolute easiest target for a practical joke?”

I couldn’t help but laugh out loud.

The answer came instantly.

Without a doubt, it was McLean Stevenson.

McLean played our commanding officer, Lieutenant Colonel Henry Blake.

He was a brilliant comedic actor, but he had one persistent quirk on set.

He hated memorizing his lines.

To survive filming, McLean developed a unique system.

He would cut his script pages into little strips and hide them all over the set.

If he had to walk to the filing cabinet, there was a line taped to the drawer.

If he looked at the map of Korea, a tiny cheat sheet was pinned there.

He booby-trapped the entire office with his dialogue.

Wayne and I watched him do this every day.

But then we had a very long scene to shoot.

It was a continuous tracking shot.

McLean had to walk from his desk, pick up a manila folder, open it, and read an urgent military directive.

Before the cameras rolled, we snuck into the office.

We found the exact folder McLean needed.

We carefully peeled off his hidden script and replaced it with something entirely different.

We put the folder right back where he left it.

We took our positions.

Action was called.

McLean hit his marks perfectly, walking confidently across the room.

The anticipation was killing us as he reached out for the folder.

He opened it up, taking a deep breath to deliver his heavy lines.

And that’s when it happened.

Instead of an urgent military directive about troop movements, McLean found himself staring at a brightly colored takeout menu from a Chinese restaurant we frequented in Hollywood.

But here is the true genius of McLean Stevenson as an actor.

He didn’t stop the scene.

He didn’t break character right away.

His eyes widened for a fraction of a second, but his posture remained rigid.

He held that folder up like it was a top-secret document straight from General MacArthur.

He furrowed his brow, adjusted his hat, and looked Wayne and me dead in the eye.

With the most serious tone of a commanding officer in a war zone, he delivered his next line.

“Hawkeye, Trapper, we have a massive situation on our hands. Headquarters just called. They’re sending us three orders of Moo Shu Pork, two egg rolls, and sweet and sour chicken.”

For about two seconds, there was absolute dead silence on the soundstage.

The camera kept rolling.

Wayne Rogers bit his bottom lip so hard I thought he was going to draw blood.

I desperately tried to keep a straight face, nodding solemnly as if this was the most tragic news we had received.

“Colonel,” I replied, my voice shaking slightly, “do we have enough soy sauce to handle that kind of massive casualty rate?”

That was the breaking point.

McLean let out a high-pitched wheeze that sounded exactly like a deflating bicycle tire.

He dropped the menu, threw his hands in the air, and completely lost his mind laughing.

Wayne collapsed onto a prop hospital cot, burying his face in a pillow to muffle his screams.

I had to lean against the wooden tent pole because my knees completely gave out.

Our director, Gene Reynolds, shouted ‘Cut!’ from the back of the room.

But he wasn’t shouting it with his usual authority.

He was shouting it between massive, heaving gasps of laughter.

We could hear the camera operator shaking so much that the equipment was physically rattling on its tracks.

The sound mixer actually had to take off his headphones because our laughter was peaking the audio meters.

It took us a solid ten minutes just to catch our breath.

Gene finally wiped the tears from his eyes and told everyone to reset.

The prop master came in, laughing quietly, and put the actual script pages back into the manila folder.

We got back into our starting positions.

Gene called ‘Action!’ once again.

McLean walked from his desk to the table.

He picked up the folder.

He opened it up.

He looked at the real, correct script.

And he just started giggling.

He couldn’t even get the first syllable of his dialogue out.

The memory of the Moo Shu Pork order was burned into his brain.

He snapped the folder shut and shook his head helplessly.

“I can’t,” he wheezed to the crew. “I keep seeing the egg rolls.”

Gene yelled cut again.

We tried for a third take.

This time, McLean made it through opening the folder without smiling.

He read the first line perfectly.

“Hawkeye, Trapper, we have a massive situation on our hands.”

He paused for dramatic effect.

From across the room, Wayne let out a single, sharp snort.

It was like lighting a match in a fireworks factory.

The entire room exploded into absolute laughter all over again.

We physically could not film the scene as it was written.

Every single time McLean opened that folder, we instantly pictured the Chinese takeout menu.

It ruined our productivity for the entire afternoon.

The crew finally had to confiscate the manila folder entirely.

They had McLean deliver his lines while looking at a clipboard instead, just to break the visual association.

But even then, whenever things got a little too tense on set, Wayne would lean over to me.

He would whisper, “Sweet and sour chicken,” and we would instantly fall apart.

It became the ultimate tension breaker for the rest of that season.

Looking back on those incredibly long hours, it’s those moments of absolute, uncontrollable chaos that I cherish the most.

We were actors pretending to be in a very dark situation, but off-camera, we survived by making each other laugh.

That sense of play was the real heartbeat of the show.

Have you ever had a moment where you tried desperately to be serious but couldn’t stop laughing?