Gross...if he min-raises, I probably just go into c/c mode since he's just shown he's a bet-sizing donk, therefore he'll probably let you to the river cheap enough to get 'value'. Then you get to look him up for an OK price and hope he has a poorly played overpair or busted draw. If the turn completes the flush draw it's not the end of the world since you picked up some outs and you may have some implied odds if the four flush completes and he can't let go of his hand. (FWIW people who min-raise in this spot rarely let go of their hand).