Can you make a living playing live 3/6 poker?

[BWillie]

I have heard some guys I play with say that it is their job, playing live 3/6 limit at the casinos around where I live, which I find hard to believe. The stakes just aren't high enough. I mean you could make a living I guess, but I don't see how you could consisently make more than 20K a year and that would be playing 40 hours plus. You figure you see 33 hands or so an hour, and even if you are a 3 BB/100 hands winner that is only six dollars an hour. I would like to get to the point where I can consistently beat 10/20 limit live. I think one could make a living of about 40-50K if they were really good in the live games.