[M1cKmAcK]

In a situation such as this, I go through the hand from his perspective and try to see what he put me on. My guess is he has you on a top 5 hand. He's calling on every intention to bluff if a scare card hits. He might even have something like A8, A6, two spades... idk. But I just can't put him on a 4 for the life of me. I mean if it was the BB that called, possibly. If CO calls here with A4, 44, or somethin like 4-5, it's the worst play ever. I think you have to call here. If he does have a 4, just remember... you play poker exactly for this reason. B/c donks really do play this badly. You're calling...

Edit: Most times this is just a blowup.