I got banned!

Lert: People don't get banned for one ineffective shot on a teammate. Only way that happens is if you've been flagged as a teamkiller way before.   Also, if you'd submitted the report of the heavy pushing you to support, he would be the one with the ban (for physics abuse / griefing), not you.   You chose to shoot a teammate. You got what was coming to you. Don't do the crime if you can't do the time.   Also, threatening to leave the game? Just what do you think to accomplish with that? That we'd all grovel and beg you to stay? Tough luck. If that's your attitude, you're better off putting your money where your mouth is.