Can a case be made to draw to 2 outs on a paired board ?

[theredpill2]

I had 2 2 . Normally I play these pocket pairs and if I don't hit on the flop I fold to any bet. I ended up folding 22 on a two suited flop which eventually paired and then I hit a 2 on the river. The player hit a flush and I would have hit a full house and I'm sure I would have ended up with his stack. The betting wasn't that heavy until the river when the 3rd club hit. The betting was only twice the blind until the river. Would any of you ever draw to two outs in anticipation of him hitting his flush and you hitting a full house ? I guess the more I think about it the more it is probably - EV unless you think you can get 8 to 1 on your money if they happen to hit two pair or something.