Hah, thats the spirit. When you play minecraft, ifthey have toilets with tanks, open up the top, look for the mechanism that stops the filling when the tank is full, usually a floaty with a lever or these days a floaty on the main shaft of the system. Give it a good disconnect and then flush. The water will flush normally and will start to fill up. It will fill for a few minutes before overflowing so you have plenty of time. Bonus points if you poop into the tank and also remove the supply valve handle before you flush.