Quote:
there aren't many draws he could be bluffing
QJ, QT, JT, J8, T8, T6, 86, 85, 65, occasional spaz with bottom pair/underpair/A high, and people do this with KJ and KT some percentage of the time. Folding is ridiculous. You'd have an actual decision to take if you had A high.
Edit: and you need to bet the turn.