very simple fun....but wicked effective! needed: super glue.... (fastest drying you can find) On a nice hot day, say after gym or in between classes, get in line at the water fountain right in front of your victim take a drink while putting a drop of super glue on the button then leave....no need to run since your victim won't be able to leave without ripping their skin off, so now they have a new job! pressing the button for everyone in line.