Flop play looks like early set action fearful of you making/having made a straight. The minraise of $10 more is asking for you to call, and the odds are correct, so I probably make the call.

No way of knowing that the river gave him a higher straight, especially since he was acting like a set, and because anyone who knows what they're doing makes a value bet instead of this ridiculous all-in (unless he thinks you'll call thinking he's making a final stab at the pot).

I guess the final word is that this guy is an idiot fish who got lucky.