One morning, Yunho decides that he's had enough of this tired and gloomy atmosphere. He decides to tell s a knock-knock joke.

The members blink in surprise at Yunho’s announcement- “Hey guys! I have a joke for you!”

Yunho is grinning at them, clearly with the belief that a joke is going to revive them and make them less of zombies.  Maybe even bring about world peace or something equally sappy and sentimental.

First off, it should be illegal for anyone to be so happy and cheerful and generally alive at such an ungodly hour. And second, Yunho’s exuberance is beginning to blind them. There’s no need to smile so brightly this early in the morning, Changmin thinks miserably.

But no one wants to be the heartless soul to burst their leader’s bubble, so they all nod in compliance. Okay, Yunho. Whatever floats your boat.

“You guys will love this one,” Yunho beams at them.

“Try me.” Changmin tells him in a monotone voice.

“Okay, here we go!” Yunho chirps. “Knock-knock!”

“You’ve got to be kidding me,” Jaejoong deadpans. “What are you, a first-grader?”