Reminds me of the time my (engineer fyi) friend decided to remove the front wheel off his motorcycle while it was on the kickstand. I warned him ahead of time, but for some reason he didn't believe me, so I made sure to move to the back of the bike, and sure enough, it started to tip forward as he removed the wheel - I hopped onto the seat from the back and saved his forks from damage. He felt real dumb.
