Here's a story for you.
I invited friends on another forum to join me online playing Starcraft 2. This one guy (who is a big-headed, big-mouth, gas-bag) said he's getting his so he's looking forward to having a skirmish with me so he can show me who's boss. Naturally and honestly, I told him no problem, just look me up online. I also told him that is what others say before I give them a beating, even if it's a 2vs1. He said I had a big mouth and said some rude remarks. I got angry and blasted him (although I knew his attitude) and he told me to cool down, he was just joking.
A few days later he said he got his, completed the campaign but couldn't play online and asked if I got mine and if it works online. I told him I got mine the day it was released and asked if his was pirated. He admitted it and this is where I blasted him again.
I told him pirated copies can't connect to Battle.Net so multiplayer won't work. And I quote "This is me not talking big but next time, before you challenge someone, make sure you grow some balls first, don't be a cheapskate and get the original copy. When you've done that, you know where to find me."
Lesson to learn : Do not piss me off because I always have the last laugh and when I have it, you are gonna look real bad and stupid.