What’s the funniest thing you’ve ever witnessed but were NOT allowed to laugh at?

We had a class baseball tournament, and my only job was to make sure nothing bad happened. One of the kids (5th grade) was at bat, completely missed the ball, and, for some odd reason, decided to let go of the bat after his swing. Well, the bat hit the catcher right on the thigh, and he went down for the count, yelling, "I can't feel my leg! I can't feel my leg!"

It took every bit of energy I had not to burst out laughing! Thankfully, the kid was fine in the end.... there wasn’t even a mark.