Guy, I've done some pretty dumb shit in my life. Hell, this one time I actually touched the plate off an electric garage door engine to see if it would shock me. I was on top of a ladder, too.
And that day I learned the fundamental law of electricity that doesn't come in most text books, that law is that electricity hurts like a bitch.
And that still wasn't as stupid as publicly making fun of an 11 year old in a videogame, while actually seeming less mature than him.
Hopefully the astounding amount of "Dumb" you just received will help you re-evaluate your stance on social interactions and basic courtesy.
K