I was wondering what the best strategy was when I hit two pair on a straight draw. Today, I was re-re-raised up to all-in by someone I knew had a high pair (from his preflop crazy raises). Anyway, to make a long story short, when a 4 dropped on the river, he made his gutshot straight A2345 and I was left with no money.

This kind of thing happens to me all the time. If someone reraises me when I have two pair on a straight board, what should I do?

I guess a second question is whether I should bother drawing to two pair if it might make a straight for someone else.