These are two of the youtube videos that I can't watch without laughing. Now, you might not think they're funny. That's fine. But I happen to think pianos flying through walls and 20-something-year-olds acting like idiots are hilarious.
This is a classic:
And also this one:
Enjoy! If you didn't laugh at either of these, there isn't much hope for you.
Find something funny. And laugh. It's good for you.