85s Blind Defense

[Moozh]

Ok, thanks as always for the replies. The check struck me as a bit fishy. I'm guessing it was one of two things. 1) He doesn't want to get bluffed out, so he's going into passive calling mode, or 2) he's going to get tricky and go for a check/raise or something like that. I really doubt he would just check/fold there. So I checked behind.

Party Poker 5/10 Hold'em (5 handed) converter

Preflop: Hero is BB with 5[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">SB raises</font>, Hero calls.

Flop: (4 SB) 6[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, Hero checks.

Turn: (2 BB) 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets</font>

Any point in doing anything here other than folding? Is a semi-bluff ever going to work enough to be worth it? Can I call profitably here? It's very possible my non-spade pair outs are clean too (or is it?).