Champ intent being banned by an "ally"
While it's far from common for me, it is extremely frustrating when a teammate clearly bans the champion I intend to play. Just now someone banned GP when I was hoping to practice him (in a normal game btw), causing me to dodge because I didn't want to waste an extra half hour. I'm not sure what should be done about it (open them up to punishment, put up a warning, idk.), but I do wish there was something. It's just beyond tilting to be opposed by your own allies before you even start the game.
Honestly I'd be happy with just being able to properly report the guy after dodging because it's not worth it to play through that game just to report him. Again, I don't know what should be done; this is honestly more of a rant than anything because the guy just pissed me off with that ban (and I don't get pissed off often).