So, I'm in the 2D lab, struggling with how to make my character transition from one pose to another, when I ask my teacher to help me. (A little background: he and I make fun of each other all the time. I mean ALL THE TIME.)
So I get my teacher to come over to my light table, he goes to sit in the chair next to mine and all the sudden I hear a loud SNAP! The chair apparently broke. He didn't go flying backwards or anything, but he shot downward really fast. It was hilarious, but I bit my lip to keep from laughing. He didn't say anything, and his face was completely serious. He stood up, switched the chair with another chair that wasn't broken, and then sat back down next to me.
Without even looking at me, he says, "I swear to god, if you make one fat comment I will fail your ass."
That's when I lost it and just exploded in laughter.
He kept going too. He went on for maybe five minutes explaining how, even if I died and went to heaven or hell, he'd still fail my ass, etc. etc.
He eventually stopped threatening to fail me when he saw that my face was a deep red and I had tear marks down my face from laughing so hard.
Good times, good times.