... When you think nukes are easy to make ... When you actually make on ... When you use said nuke on yourself and think you can dodge all the stuff ... When you eat the nuke right before it blows up
...When you try to teleport from one place to another by thinking about it. ...When you try to disable gravity with huge fans. ...When you try to test you non-appearing invincibility by jumping in front of a fast driving car. --Good enough?
...When you build a console version of Conway's game of life. ...When you dive out of an airplane and realize you strapped your school backpack to your back.