Originally Posted by tdude
I would call a raise a pre flop if it is less than 20% of your current stack. If you se a a k or q on the river and some one goes all in, just fold, unless you hit your set. If someone goes all in preflop and it is someone with a stack in good chip rank, fold.
You can't fold every time an over card comes to your JJ. If you do, you'll end up losing money. Most flops will contain at least one Q, K, or A. An A is obviously a much scarier card, because far more of the villain's range contains an A than a Q or a K. However, if you're raising and then losing every time an over card hits the board, you're playing far too passively, and people will pick up on that.