Please don't do this

If you have to leave in 10 minutes, please don't start a game. Why? Because games never take 10 minutes.

Was winning an ARAM game when two people said that they had to go so we should surrender. Then after 15 minutes and after a failed surrender vote (because we were winning), one totally AFKed and the other just stood in fountain just to come back right when we lost.

Please, it's not worth playing if you can't commit 100%. If you have lag, it's out of your control and I get it, but if you choose to leave voluntarily, it just ruins the game for your team.

I know these posts usually come across as whiny and useless, but I believe that people DO read your post at least once. If at least one person thinks about their actions by reading this post, I'll be happy.