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. 
Well, I have a lot of mistake have done in playing gambling like I lose a lot of money upon there. I remember that I win that big and despite of what I have earn I still continue then I lose all of that instantly. But the most mistake I have ever made is that when I enter this gambling.