Players that go AFK in the middle of the game and then come back only to whine and start feeding
In solo queue. I had an Akali mid randomly AFK without saying a word for at least 10 minutes, then come back to blame our losing on the jungler (me) "no ganks, GG" and would go wander into the jungle dying every 2 minutes until we lost.
I understand if you have to take care of something quickly that only takes a minute or whatever but if you're gonna sit at the fountain for 10-15 minutes without saying anything and then come back with your garbage attitude to make the game EVEN WORSE for everyone (by inting), you deserve to be banned. Why would you even bother coming back at all???
I checked this person's match history and it looks like they were on tilt / losing streak but that's still not an excuse to leave and fuck over your whole team. I don't think I said much of anything to her until I noticed she was totally AFK
It's just unacceptable behavior. /end rant