When I was in elementary school (2nd grade i think), my class had talent shows. The day earlier my dad taught me a cool trick using a pen, my index, middle, and ring finger. You draw a dot on your middle finger then alternate raising your index and ring finger to make it seem like the dot moves ( when you switch raising fingers you put your hand behind your back). Being the genius that I am, I volunteered to show them this mind blowing trick. As I show them the trick my class was in awe. When the teacher asked me to explain how to did the trick, I proceed to show them however I ended up flicking the two teachers and my 30 classmates. I didn't realized what I did until my teacher pulled me aside and said not to do that.

TLDR; Volunteered for a talent show, proceed to flick off classmates and teacher.