What is the stupidest/funniest thing you have ever done?

For me it would be on New Years going around and wishing people happy New Years. I went up to my friends neighbors house and I wished them a happy New Years. My friend and the neighbors despised each other because when ever we went over we would ding dong ditch there house. After I wished then a happy New Years I went back to my neighbors house laughing because the lady looked stoned when I was talking to her. The neighbors, of course five minutes later came to my friends house and came inside. The husband said "Who came to wife's house" I said "I did sir" and he came up into my face, close enough so I could see his pores. He asked me why I threatened his wife, and I laughed my ass off. He said he would call the cops, not expecting he would, but he actually did. The cops came and believed me but the officer said to keep of their property. Never going back to there house again.