Xanadu's answer illustrates what I was going to say to the extreme. You have to bet bigger than the pot sometimes when you know a player has a tendency to chase. Just make it expensive. I personally wouldnt go all in, but I would make a big bet there.

On the second hand, I tend to back off when a board shows all one suit like that. I pick a better spot. You have 4 outs, which means roughly a 1 in 10 shot to hit your card and beat the obvious flush. I normally dont play that. Not to say that X's advice is wrong. I just personally dont want to become the chaser there.

I like to train myself to recognize when I'm beat and learn when to lay down a hand. That second hand is a perfect example for me of when I pat myself on the back for laying it down.