re: Poker & Betting top pair, top Kicker
A bit of controversy on this. Bottom line is this: If you don't want to go broke, back off when the Q shows up on the turn.
To me, the all-in on the turn with the J is more about ego. I know the mindset well. I've had the thoughts running through my mind as well. This sound familiar? "Hey! I raised on the flop with top pair, and an A kicker. I am certain it was the best hand. Now the Q comes and dammit he is not going to beat me out of this pot! All-in, baby!!!!! -- can you beat me? .... oh, crap, you can....Well, what were you doing calling me on the flop anyway? You didn't have anything!!! You suck!"
Leave the ego elsewhere. Think about what he could have, and if you think you might be beat, let the hand go. If you think you might win it by shoving, accept that you could be leaving now. Embrace that risk if you make that play.