I grew up in a suburb of Columbus, Ohio, in the early '90s, and hospitals and doctor's offices offered to x-ray candy. I was 7 or 8. The day after Halloween, my brother and I were sorting all of our candy, and my mom asked if she could have a piece of my gum. She put the gum in her mouth, bit down, and there was a shard of metal in it!
It's the most terrifying thing for me, improv. It's a complete lack of control of both narrative and performance. Once you let yourself go into that, it's totally fun. The terrifying thing is, do I trust myself to let go of the handles and not embarrass myself, or not say anything completely inappropriate, or reveal something about yourself?