Recently user blackwatchdoctor asked Reddit "What is the dumbest thing you've ever done for no reason?" The responses were better than expected:
6.
Honestly who wouldn't try this.
7.
Children are terrifying!!!
12.
That was an expensive lesson.
14.
Why do I love this one the most(!!!)?
15.
Children are terrifying, part deux.
19.
You won't make that mistake again.
20.
We've all been there.