Ctrl-z

Ctrl-z allows you to undo your last action. I have thought en about people having an undo button in life. Wherever you did something wrong you can just go back and delete it from your life like it never happened. I think that would make life easier at some point. I would use ctrl-z because sometimes us people do make mistakes, I don't know how this would help if you had it in your mouth? If I were to get it I would just get it to undo some mistakes in life that I have done.