What should I do when 4 premades threaten to troll me in pre-game lobby?

Well I just dodged and I think it's pretty unfair that I'm getting punished for that (even though it's just 5 minutes)... I mean they also banned the champion I wanted to play, so... yeah... and I don't want do endure 20-30 minutes of trolling when my mood is down anyways... My support also prepicked yasuo... so yeah... I'm pretty sure they were intended to troll me the entire game...
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