(LC) $109 bubble - why do people call in this situation?

[tigerite]

It's not a bad beat.. but this guy is sane, seems to know what he's doing, is on many tables (it's StiffStuff) and then he makes a ridiculously bad call like this?

PartyPoker - NL Texas Hold'em $100 Buy-in + $9 Entry Fee Tournament | Level: 9 - 4 players (Converter: PGC)


Chip Counts:
Button: 810 Chips <--- NOTE CHIP STACK AND BLINDS
<font color="red">Hero: 3650 Chips</font>
BB: 2970 Chips
UTG: 2570 Chips

Hero is SB with 8[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/club.gif[/img]
Blinds are 250/500

PreFlop
<font color="blue">UTG folds</font>, <font color="blue">Button folds</font>
Hero is All-In, BB is All-In

(2 players) FLOP: 3[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/heart.gif[/img] ( Pot Size: 6620 Chips )


(2 players) TURN: 5[img]/images/graemlins/heart.gif[/img] ( Pot Size: 6620 Chips )


(2 players) RIVER: J[img]/images/graemlins/spade.gif[/img] ( Pot Size: 6620 Chips )


Final Pot:6620 Chips


Results in white below:
<font color="white">SB shows:8sQc,a pair of threes</font>
<font color="white">BB shows:AhJd,two pairs, jacks and threes</font>


These people boggle my brain - I thought I left this kind of nonsense behind in the $33s.