Queuing into wrong role for free S's
A thought just occurred to me, especially when playing with a premade who's in on it, could one not just queue in as a role their champion never plays, then get a "free" S playing where they'd normally go?
Like queue in as jungle, pick a squishy mage that nobody would ever jungle with, and go mid. Then proceed to get an S with 3 kills and 5 assists because the only person who tried to jungle that champ only got 1 kill and 3 assists.