I had a situation with this today, and this thread has helped me realize my mistakes. I'm new to hold 'em, maybe 4 months or so, so just a baby, but I try to do my homework and play as much as I can for real life experience and usually clean up against fish except for what I tried to pull today.

I was on the button with AK and raised 4x the bb, it was a table of fish so I knew it would pay off. Flop was rags, so make a bluf at it? I guess thats the first mistake with low limit fish tables... Anyway, got called down and my AK was beat by 4s! That bastard! A lesson learned, no continuation betting trying to steal pots at low limit tables with fish. Ok.