In a hand I just played (HU at the flop), I had SC and hit mid-pair on the flop w/two hearts. Guy min-bets, I raise it to the pot, he calls. Turn's a blank, and confident that I have the best hand, I 3/4 pot it, he calls. River's a double scare card (Ah). He donk min-bets into me. Not having a great hand, I just call. He turns over nothing (a busted straight-draw which appeared on the turn). Needless to say, I was very confused by his play.