Quiz: 4th Broadway on River and SB Wakes Up 1/2 6Max

[TomBrooks]

PTY 1/2 Hold'em (6 max, 6 handed)

SB 20.5/2.3 over 25 hands and is in the green. I hadn't noticed him getting out of line on anything yet.
UTG is a Fish 44/0

Preflop: Hero is MP with 3[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
UTG calls, Hero calls, CO calls, Button calls, SB completes, BB checks.

Flop: (6 SB) A[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, BB checks, UTG checks, <font color="#CC3333">Hero bets</font>, CO folds, Button folds, SB calls, BB folds, UTG calls.

Turn: (4.50 BB) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, UTG checks, <font color="#CC3333">Hero bets</font>, SB calls, UTG calls.

River: (7.50 BB) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets</font>, UTG calls, Hero...

Final Pot: 9.50 BB

What would you do, Call or Fold?