troll in champ select

I just dodged a champ select because our adc was 12 and said he was going to troll because he likes to see players rage. i'd rather dodge a game then lose because of some troll but it still is unfair that i have to lose lp while this troll just gets away with it. The other 3 on my team completely agreed with me so i didnt do it againt their will. Is there any better way to deal with this situation? idk if i did the good thing or not. Thanks in advance
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