3bet pot common turn situation

[markuisis]

Villain is an unknown TAG running at 20/18/3 over rougly 150 hands, he hasnt been 3betting out of the ordinary or anything. This is such a typical scare card, do u guys call? Do u think his bet size is a bluff very often?

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

MP: $125.85
Hero(CO): $145.65
BTN: $59.10
SB: $45
BB: $310.85
UTG: $116.30

Pre-Flop: 8[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/club.gif[/img] dealt to Hero (CO)
2 folds, <font color="red">Hero raises to $3.50</font>, 2 folds, <font color="red">BB raises to $13</font>, Hero calls $9.50

Flop: ($26.50) 2[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">BB bets $20</font>, Hero calls $20

Turn: ($66.50) Q[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">BB bets $37</font>, Hero?

[holdme]

just fold

[markuisis]

[ QUOTE ]
just fold

[/ QUOTE ]

easy fold then? do u think hes bluffing with this amount very often?