╭∩╮（︶︿︶）╭∩╮Pass it on if you have No ♥♥♥♥♥ to give.

A man was building a time travelling device, and was visited by his future self. He was told not to travel back in time because he would stab him self. The man refused to believe this was true, and thought it was a trick, so he stabbed his future self. He then realised what he had done, and went back in time to warn himself of this.