Hand I witnessed - Do you call this river?

[theblitz]

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

UTG ($37.15)
MP ($67.65)
CO ($117.02)
Hero ($53.1)
SB ($120.41)
BB ($40.3)

Preflop:Hero is Button with 2[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $0.25.

Flop: ($0.75) 4[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(6 players)</font>
<font color="#CC3333">SB bets $0.5</font>, BB calls $0.50, CO calls $0.50, Button calls $0.50.

Turn: ($2.75) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(6 players)</font>
<font color="#CC3333">SB bets $4</font>, BB folds, CO folds, Button calls $4.

River: ($10.75) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets [$50]</font>

(Hero is not me. I folded on the flop).

So, are you calling here?

SB is a solid player - not showing any signs of being suicidal.