Why bother when you can place a few even money bets and then cash in after a few rolls? The best way to get away is to pick a busy table and cash in as soon as the dealer takes the number marker down. He will almost always cash you in before he sorts the chips. The secret is to look around before you leave and plan your escape so that you can get behind a bank of slot machines, etc. before they notice that you are gone. If you take full stacks the dealer may never notice that they are missing.