Sorry, this made me laugh (or cry?). Was in a 3v3 this morning. First ally drops, so we have an AI. No big deal, we're still doing ok. Then second ally shouts to everyone "Sorry, I have to go afk" and parks at the health crystal for the rest of the game. Of course, no contest from this point on.
I realize anyone who reads the forums probably doesn't need this advice, but
1. If you're going to go afk for more than 1 minute, why wouldn't you just quit and let the AI take over?
2. Why announce to the other team that you're going ok? Maybe they'll at least think you are doing something...
Ah, games like these drive me crazy...