$55 PP What are they thinking?

[HoldingFolding]

I was reveiwing a bunch of HHs & came across this hand. What do you think they were thinking?

Party Poker
No Limit Holdem Tournament
Blinds: t200/t400
6 players
Converter

Stack sizes:
Hero: t3440
UTG+1: t3230
CO: t3600
Button: t2890
SB: t2360
BB: t4480

Pre-flop: (6 players) Hero is UTG with 5[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/heart.gif[/img]
Hero folds, 3 folds, SB calls t200 <font color="aaaaaa">(pot was t600)</font>, BB checks.

Flop: A[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] (t800, 2 players)
SB checks, <font color="#cc0000">BB bets t800</font>, <font color="#cc0000">SB raises all-in t1960</font>, BB calls t1160 <font color="aaaaaa">(pot was t3560)</font>.

Turn: J[img]/images/graemlins/club.gif[/img] (t4720, 1 player + 1 all-in - Main pot: t4720)


River: Q[img]/images/graemlins/club.gif[/img] (t4720, 1 player + 1 all-in - Main pot: t4720)


Results:
Final pot: t4720
<font color="#ffffff">BB shows 4c 9c </font>
<font color="#ffffff">SB shows Jd 9h </font>

[IceMuncher]

I miss Party =(

[diditmyway]

sb check/raise flop since he expect BB to take the pot. BB feels commited and calls

[reecelights]

The 4 is a pretty easy read and therefore a shove, what they didn't consider is that they were possibly pricing BB in.

As far as BB calling either he's seen SB shove air here before or, of course, it's possible he wasn't thinking at all. This may be a spite/frustration call due to being on tilt from contantly getting played back at.