In League of Legends, there are a lot of people who rage and cry about their teammates. This usually results in 1 of 2 things. Either they rage-quit the match, or they go "afk" at base. I'm aware of the 5 minute leave timer, where a player who's inactive for 5 minutes gets kicked and marked as a leaver if they don't return.
What about people who say they'll afk at base, but make sure they don't get autokicked by staying in to chat or by moving their mouse? Is there some kind of check for that, and are they penalised (besides being reported for being afk)?