1) You have an interesting potential hand if you can see a cheap flop. Great section on "The power of the 6" here:
Pokermafia
2) Folding is not wrong, but I might be tempted to call here and see what happens. Bettor may have A2 with club draw and be playing it poorly, a set or a wrap. If you fold, most likely everyone else will. If you call, you may well get some other callers and the pot may develop interestingly on the turn: A,2,non club 4,5,6, heart. It is only 6% of my stack to call and I may get 2 other players coming along in a pot where there is the potential for them to over-commit and where I can scoop.