1.) A fight with futility: A machine with a switch that, once it is turned on, a series of processes start that work to switch the button back and turn the machine off.
Or, painfully loud static noise playing from headphones, and the only way to turn then volume down is by yelling louder.
2.) A simple “On / Off” button that, when you switch it on, the computer randomly generates either “You win” or “You lose”. The code is very long and written as if there are many calculations and steps going into determining whether or not “you win”. The button is decked out with lots of wires and gadgetry to make it look like a very high tech machine, when it is actually just a very simple button.