Villain is a grungy-looking white guy in his 40s or 50s. Not much of a read other than he's raised some pf but I haven't seen him get crazy post or show down anything indicating he's a spaz.
Villain is UTG. Hero is in MP2 with 9
Villain raises, folds to MP1 (LP) who calls, Hero 3!, folds to Villain who caps, both call
Flop (3 players, 13 SB): 7
Villain bets, LP calls, Hero calls
Turn (3 players, 8 BB): 6
Villain checks, LP checks, Hero bets, Villain raises, LP folds, Hero calls
River (2 players, 12 BB): 5
Villain bets, Hero raises, Villain calls
Pre, turn, and river seem fine. Raise flop?