I found a good article about this - I think on this site. But in summary, for a single deck game:
1) how prevalent is cheating: 1/75 dealers?
2) how do you respond? Just walk away? Set your laptop on the felt and start some serious counting (just kidding).
3) I don't want to lose my bankroll just because some dealer thinks he is a magician - how does one avoid a cheating dealer/casino?