How People Cheat At Casinos

A standard card deck has seven aces, right?

Ever Wanted To Beat A Slot Machine?

Everybody loves winning money. But some people love it more than others and have discovered dastardly (and potentially disastrous) ways of doing it. Here are some of the most ingenious casino gambling tricks.

Read: Chuck E. Cheese Sued For Promoting Gambling To Children

When I go to a casino, I follow Wesley Snipes' advice: always bet on black. But cheaters have a different strategy when they go gambling: they will do whatever it takes to gain an edge on the house.

So how do they do it? MSNBC spoke with scammer extraordinaire George Joseph, expert at Worldwide Casino Consulting and author of "The 101 Most Asked Questions About Texas Hold'em and Poker Cheating," to find some of the techniques people use to break the casino bank.

Here are a few of the most popular (whatever you do though, never attempt them yourself. Casinos spend millions on theft and cheating prevention, and the penalties involve massive fines and serious jail time):

Card Switching: While holding an ace up your sleeve sounds like a cliche, the art of card switching involves quite a lot of skill and subtlety. Joseph says casinos have lost millions from this type of scam, which has evolved into the use of complicated devices attached to the wrist that deposit and remove cards from the table.

Read: Whitney Houston's Daughter Investigated For Underage Gambling

Slot Machine Bill Validator: Slot machines are usually just video games that slowly drain you of cash, but to the expert cheater, they're gold mines. One popular device is a fake bill validator. These gadgets are inserted into a slot machine and trick it into thinking all bills are $100s.

Roulette Past Posting: This one sounds easy but it takes some personality. Usually involving at least two people, past posting is when a bettor places chips on the winning number AFTER the ball has landed on the roulette wheel. The dealer is often distracted by one cheater while the other sneaks chips on the table.

To read more ways people cheat at casinos, head to MSNBC.com