Back to topic..
There was this one time when I was in the sixth grade, my teacher was talking and she's one of those teachers that walked in small circles when she talks. There was this bug crawling on the floor (roly-poly, I think).. Anyway, she got to moving in her small circle and the bug was crawling towards her (and most of the class had noticed it too). She took one swipe with her foot forward, almost stepping on the bug (she knocked it on its back) and then took another swipe forward with her other foot, squishing the bug. It made a small crunch sound and the class started laughing.
She stopped and asked What's so funny? She hadn't seen the bug, and we told her about it.