People banning the champ I want to play.
It has happened too many times to me recently where someone on my team banned a champ after i would specifically ask them not to ban that champion or pre-select them. Its gotten ridiculous at this point, and has forced me to dodge a few games and it pisses me off. I was thinking that there could be some sort of punishment for people who ban the champ you pre-selected if they are on your team. A lot of the time they also are doing it intentionally. Hopefully something is done, like it automatically has the person who banned dodge.