It appears that one will lose social points when abandon a game. However sometimes you may wanna leave at the mid of a game: 1, when i jion a game which already started, there's no mana for me and 1 people busy setting up all for like 2 or 3 mins. 2, Someone in your team decided to stay afk from wave 1 to the end, never hitting G nor opening his mana chests. 3, I enter a game they are doing a map i don't wanna do. 4, Game sometimes crashed at the mid of a combat. 5, Some people troll. And i don't think it really hurts a team if there's a leaver, his mana will drop and others can use it. People will soon jion and take his place too. Why should we punish people who leave at the mid of a game.