I was sitting across from a young actor a few years ago.

He was one of those kids who grew up watching the reruns with his father.

He had this look of pure reverence in his eyes.

The kind of look that makes you feel both very old and very lucky.

He leaned in and asked me the question I have heard a thousand times.

He wanted to know if the O.R. set was as intense as it looked on screen.

He wanted to know if we were actually as close as we seemed in those final episodes.

I told him that the closeness wasn’t just a byproduct of the writing.

It was a survival mechanism.

We were filming in the Malibu Canyon, and it was either a hundred degrees or freezing.

The dust was everywhere, and the hours were long enough to make a sane man lose his mind.

To keep from cracking, we turned the set into a playground for the most elaborate pranks in television history.

That is when I told him about the “Long Con” we played on Larry Linville.

Larry was a prince of a man.

He played Frank Burns, this sniveling, neurotic character that everyone loved to hate.

But in reality, Larry was the most sophisticated, well-read person on that mountain.

He was also incredibly polite.

Too polite for his own good.

One afternoon, Mike Farrell and I were sitting in the dirt between takes.

We looked over at Larry’s dressing room trailer.

It was a small, humble space where he went to study his lines in peace.

Mike looked at me and said, “Do you think Larry would notice if one thing went missing?”

It started with a single lamp.

Then a rug.

Then a chair.

We decided to see how much of a man’s reality we could subtract before he finally said a word.

Day after day, the room grew emptier, and Larry just kept walking inside as if nothing was wrong.

By the third week, the suspense among the cast was becoming unbearable.

We all gathered near his trailer one morning, hiding behind the catering truck.

We watched him walk up the steps, his script tucked under his arm.

He reached for the handle, his usual polite smile on his face, and swung the door wide.

The silence that followed was heavy enough to feel in your bones.

We were all peeking through the gaps in the equipment, holding our breath so hard it hurt.

Larry stepped into the trailer and just stopped.

The room was completely, utterly empty.

We had spent the previous night working with the crew to remove every single thing that wasn’t bolted to the chassis.

The curtains were gone.

The carpet had been ripped up.

The small desk, the mirrors, the wardrobe—it was all vanished.

The only thing left in the entire room was a single, bare lightbulb hanging from a wire in the center of the ceiling.

And directly underneath that lightbulb, we had placed one solitary, tiny wooden stool.

We expected a yell.

We expected him to come charging out demanding to know where his life had gone.

Instead, Larry just stood there in the center of that hollowed-out metal box.

He looked to the left.

He looked to the right.

Then, with the kind of dignity only Larry Linville could muster, he slowly walked over to the tiny stool.

He sat down on it, opened his script, and began to read his lines by the light of that one lonely bulb.

He didn’t say a word.

He didn’t acknowledge the theft of his entire world.

He just sat there, acting as if he were in a fully furnished palace.

Behind the catering truck, we were starting to vibrate.

Mike Farrell was actually turning purple trying to keep his laughter internal.

I had my hand clamped over my mouth so tight I was leaving marks.

We couldn’t believe it.

He was going to out-polite us.

He was going to pretend the room was exactly as it should be.

Just then, our director for the week walked by.

He was already stressed because we were behind schedule due to the heat.

He saw us all huddled behind the truck like a bunch of schoolboys and looked confused.

Then he looked at Larry’s open trailer door.

He saw Larry sitting on a stool in an empty room, reading a script with complete focus.

The director stopped dead in his tracks.

He rubbed his eyes, looked again, and then looked at us.

“What is happening?” the director whispered.

None of us could speak.

Finally, Mike Farrell managed to wheeze out, “We’re waiting for the reaction.”

The director looked back at Larry.

He watched him turn a page of the script.

He watched him adjust his position on the stool as if he were adjusting his weight in a plush armchair.

The absurdity of it finally broke the director.

He started to chuckle.

Then he started to laugh.

Within thirty seconds, he was doubled over, howling at the sight of Frank Burns studying his lines in a void.

The sound of the director’s laughter was the signal.

The entire cast and the camera crew, who had been in on it, erupted.

We swarmed the trailer, falling over each other.

The grips were leaning against the side of the metal walls, gasping for air.

The sound was deafening—just sheer, joyous, chaotic laughter echoing off the canyon walls.

It was the loudest sound I think I ever heard on that set.

Larry finally looked up from his script.

He looked at the crowd of thirty people laughing until they cried.

He didn’t get angry.

He didn’t even look surprised.

He just looked at us with a very small, very dry smile.

“Oh,” Larry said, his voice perfectly calm.

“I was wondering when you fellas would finally show up. I was starting to think I’d have to sleep on the floor tonight.”

That was the magic of that show.

We were making a comedy about a tragedy, and sometimes the only way to keep the tragedy from winning was to be as ridiculous as possible.

The crew spent the next hour helping us move everything back in, still laughing the whole time.

The director didn’t even care that we lost the morning’s light.

He told us it was the best scene he’d seen all year.

We spent eleven years in that mud, and stories like that are why we never wanted to leave.

Larry taught us that day that you can take away a man’s chair, his rug, and his desk, but you can’t take away his sense of humor.

It was a small moment, a silly prank that took weeks of planning.

But it’s the one I think about whenever I see an empty room.

I looked at the young actor who had asked the question.

He wasn’t just smiling; he was laughing right along with me.

The connection was there, across the decades.

The humor of the 4077th was still doing its job.

If you could pull a long-term prank on your coworkers without getting fired, what would it be?