I'm a relative poker novice, but here's my thoughts...

I find that this type of hand happens a lot. When your stack (and your opponents) is below 20 big blinds it's not uncommon to see all-in hands with just top pair or an overpair. The experts say don't go broke with 1 pair, but in low "M" (ratio of stack to blinds) scenarios there is often no choice.

You make a good sized raise pre-flop, a good sized bet after the flop, and by that stage you have half your stack in the pot. What are you going to do on the turn? not bet an overpair? your opponent's most likely holdings are AT, JJ, TT or 88. The clear favourite in my mind would be AT. If he has TT or 88 then he will probably bet if you check the turn anyway. And you will have to call. You can't exercize pot control here. There is almost 2000 chips in the pot when the turn comes. If you check and he bets 400 chips are you going to fold, given 6 to 1 pot odds?. And if you then check the river (assuming it came a blank) and he puts you all in for 500, you are given pot odds of almost 7 to 1. Again, insta-call. Folding at any stage would be weak. Trying to slow down will not save you money if you are beat, it will only win you less money if you are ahead. So push the hand and cross your fingers. If you run into trips, it wasn't your day.