What are some the more idiotic and stupid mistakes that you know you shouldn't have made but did anyway. Yes this includes other none gambling stuff like sending btc to the wrong address. I'm interested to find out the stupid things other people do. 
I think the worst mistake that i've done in gambling was when I tried to fulled the dice after spinning it.And it cause a big loss for me.
I loose big amount of money, and I regret that decision I've made.
It happen because it too drunk and dont have enough proper mind.