I think that opponent is on tilt here - hence the river call.

I put him on a flush draw, or possibly a high bag, given the lack of action on 3rd and 4th. Certainly not aces to start with, and very likely not even a pair. I would have folded 5th if there had been any significant action earlier.

Thoughts?

7 Card Stud High ($5/$10), Ante $0.50, Bring-In $2 (hand converter)

3rd Street - (0.70 SB)

Seat 1: xx xx 5[img]/images/graemlins/heart.gif[/img]___folds
Seat 2: xx xx 9[img]/images/graemlins/club.gif[/img]___calls
Seat 4: xx xx 6[img]/images/graemlins/spade.gif[/img]___folds
Seat 5: xx xx J[img]/images/graemlins/diamond.gif[/img]___calls
Hero: 7[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img]___brings-in
Seat 7: xx xx A[img]/images/graemlins/club.gif[/img]___calls
Seat 8: xx xx Q[img]/images/graemlins/diamond.gif[/img]___folds

4th Street - (2.30 SB)

Seat 2: xx xx 9[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/diamond.gif[/img]___checks
Seat 5: xx xx J[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img]___checks
Hero: 7[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img]___checks
Seat 7: xx xx A[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/spade.gif[/img]___checks

5th Street - (1.15 BB)

Seat 2: xx xx 9[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/heart.gif[/img]___folds
Seat 5: xx xx J[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/club.gif[/img]___folds
Hero: 7[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img]___calls
Seat 7: xx xx A[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img]___bets

6th Street - (3.15 BB)

Hero: 7[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/spade.gif[/img]___calls
Seat 7: xx xx A[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img]___bets

River - (5.15 BB)

Hero: 7[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/club.gif[/img]___calls
Seat 7: xx xx A[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/spade.gif[/img] xx___bets

Total pot: 7.15 BB