[tewall]

Your equity is .21 if you fold, .31 if you call and win, and 0 if you call and lose. Your expected gain is (chance of winning) * (.31). For this to be greater than .21, your chance of winning would have to be better than 67%, but even against two random cards AQo only has a 64% chance of winning. So even if you knew your opponent would go all-in with anything here, you should still fold.

That's a bit counter-intuitive.