Here's one I plan to read on the show this weekend:
When I was a kid, me and my mom were sitting in the waiting room at a doctor's office. I picked up a local newspaper and the front page showed a young girl in position to return a volleyball. I asked my mom, loudly, "Why does she look so stupid? That's a stupid way to stand." calmly, with saint-like patience, she assured me, "That's just how volleyball players are supposed to stand sweetie." So, of course that wasn't good enough for me, so I began yelling, "Well it looks dumb. I can't believe her picture is on the front of the newspaper looking that stupid. I would never play volleyball if I had to look that stupid." A girl was sitting silently, playing with some Legos across the waiting room table on the floor. She looked at me when I raised my voice, and stood up slowly from the ground and started walking over. She peered over my lap and looked at the news paper, then looked at me and quietly said, "That's me. The picture is me playing volleyball at school." I felt so incredibly mortified that I couldn't speak. My eyes began filling with tears and my mom was literally face palming. It was then that I vowed never to make fun of people like that in public again, and I still haven't to this day.