Played this hand last night and was'nt sure whether this was a call or not on the river. Only had about 30 or so hands on Villian and was running at 30/0/1.7 his AF was leaning me towards folding but figured he could do this with a lot of Ax hands so I called. I took the free card on the flop cause I did'nt want to get CR'ed. Thought on this hand>>>

He's a half stack so he's a donk so I probably make the call.

i would always call this opponent here...

He thinks he's got a big hand, but 30/0 and half a stack means he's a donk. A donk thinks any A is a big hand, so call cheerfully but lose occasionally.