[Poker's Busmalis]

I never check that turn, they call flops with A7 and such very often, and that check/raise on the turn is many times a frustrated play (he thinks you're bluffing or something). And as it's only 8.55 more, you basically have to call that shove, he's on a missed flush draw / A7 / QT enough times.

Maybe he has a set or something, but donks in micro stakes do this with crap all the time.

BUT if you want to avoid this situation, just check the turn and fold if the flush gets there and call if it doesn't (of course depending on the size of the bet etc.)