Here is the type of situation:

You raise in MP with 99 or perhaps AJ-AK, but lets call it AK as that is the common one everyone raises with.

The big blind calls.

Flop: 964 rainbow.

Bigblind donks out a 1/2 pot sized to pot sized bet. What do you do? Even if you know BB donks out a lot or is one of those players who religously believes checking shows weakness and you should always bet when it's your turn?

We've all seen it:
You have TT, UTG limps and you raise to 5xBB and he flat calls. Flop is J74 or something and he minbets. Raising inflates the pot when you probably won't like the next card and flat calling will make around 6/10 of these type of villains pot the turn. Folding tens on a J high flop with 12:1 pot odds is clearly the worst option.

So how do you deal with donking out? Essentially it is someone taking the control away from you when you have a hand but not one you want to play a big pot with. Does anyone here habitually donk out into preflop raisers? I really hate the play. Perhaps that's a sign that it's not the worst thing in the world to be doing?