Biggest pot you've ever made a bad fold in?

[David04]

Party Poker 0.50/1 Hold'em (6 max, 6 handed) converter

Preflop: Hero is CO with K[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/diamond.gif[/img].
UTG calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, Button calls, <font color="#666666">2 folds</font>, UTG calls.

Flop: (7.50 SB) 4[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets</font>, Button calls, UTG calls.

Turn: (5.25 BB) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets</font>, Button calls, UTG calls.

River: (8.25 BB) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, Hero checks, <font color="#CC3333">Button bets</font>, UTG calls, Hero folds.

Final Pot: 10.25 BB

Results in white below: <font color="#FFFFFF">
UTG has 7d 8d (one pair, sevens).
Button has Th 4h (one pair, fours).
Outcome: UTG wins 10.25 BB. </font>



I didn't think there was any way I bet a river bet + a call.