I can't fold to that bet on the flop. It's a retarded bet. If he has the Q or an overpair, he's a fool for pricing in every draw known to man. Sure I guess he could have QQ? But 50 is too little of a bet to fold to at this point. I call and reevaluate on the turn, maybe lead out if an unthreatening card falls, and fold to a raise.