strange passive donk check

I call in MP after one limper with K-10 off.

SB folds, BB checks option.

flop 10 [img]/images/graemlins/club.gif[/img]2 [img]/images/graemlins/club.gif[/img]6 [img]/images/graemlins/heart.gif[/img]

check, check, i bet, BB check raises, limper folds, I call.

turn 3 [img]/images/graemlins/spade.gif[/img]

BB checks....

My play???

Does this guy almost always have a flush draw and an overcard here? Or is he trying to c'r me twice with a hand?


Thoughts, please...

Especially from the mod, because, i love reading his opinion.