hey what would happen if you join a group that has 4 people who know each other that want 1 item that you want too, so they kick you right at the start of the dungeon?
or maybe you are in a group that has a tank that doesnt know how to keep aggro and it is a DPS spec tank that thinks he can just talk anything in frost presence, so you want to get kicked as the healer.
maybe your random is occulus.
i can think of other reasonable reasons why you would want to get kicked or could be kicked as an innocent person.