The guy had good spirits about it though; he even jumped
through the wall to get to his room

Harsh is one they showed where a bunch of friends were watching the lottery on the TV, and one of them starts getting excited as the numbers are being called. He has
all the winning numbers, jumping around the room (he's just won the lottery!); his friends, meanwhile, are laughing their heads off. What they all were watching was a recording of the previous week's lottery, which they had used to buy
his ticket.
That's harsh. Until they point out it's the second time they've (successfully) pulled it on him

(And for all I know that was a College Humor thing too. Thanks for that heads up; the Prank War things are hilarious

)
But on a previous point, what was the guy's reaction to the post-it notes? WE NEED CLOSURE. I got a good laugh when I saw the a post-it note, and on it was a post-it note that said "POST-IT NOTE".