For something like that, espically where if you complete your hand, you are gonna be top hand.(Like the Ace high straight, or Ace high flush) is a chk-raise preflop, and chk the turn, trying to see a free river card. If chk after you on the flop so your first to act on a "rags" turn for both you and the board, you can then make a small continuation bet that they can call with middle pair or a worse draw then you. If raised anything that would take you out of correct pot odds
to call, then make the fold and it only cost you a continuation bet.
River that missed you after a cont bet you have options based on your oppents actions so far, did he miss his draw? is there pair, really the "rag" on the turn that you bet on, that they called? Will they fold that?
Did they flop trips or two pair and scared of the draw that just missed, will you get pushed upon if you make another "value" bet? W/ever the case may be, pushing is usually NOT the way to go. Chk-folding may be, hey you saw the full board for one continuation bet, or one re-raise.
As for the topic itself, Playing crap from the BB... Learning to use the squeeze play agaist a loose raiser and caller or two can pay off. Provided it won't risk your stack to much. min-raiseing a small pot of 1 or 2 pppl, then cont betting the flop no matter what with probley a 1/2 to 3/4 size pot bet against tight ppl may work. When small raised to you in a shortgame against ppl you know, start mixing it up more, reraise and chk-fold bad flops like it was no big thing, rerasie and chk-push on someone you know just did a cont bet, reraise and chk-call flop and bet turn. If you get them thinking twice about raiseing your BB cause they don't know how you are gonna play it, the less likely you will have to be forced to play crap from the BB and it will be pretty easy fold or reraise situations.