Although a small percentage of players think they should be able to do anything and say anything at their local casino, most properties have strict rules about behavior, and that includes language. Well, that's not true, you can act like an idiot, but the casino can throw you out or have you arrested.

Casinos usually try to hold the line on these comps to under 20 percent of a player's expected loss, but savvy blackjack players can earn back the bulk of their estimated losses by playing excellent basic strategy. As long as you play you will earn additional complimentary gifts.

When you sign-up you may get free cash, a room, a meal, or any one of a dozen free things.

You can get free stuff! Casinos are all about signing-up new guests to their player's clubs.

This group includes blackjack card counters, but the largest percentage is comprised of players who gamble just enough to quality for freebies and complimentary giveaways like free rooms and meals. Of course, those patrons who play very little or are accompanying real players make up a large portion of this group, but there are many players that are actually able to win over a long period of time. Research shows that while most players end up losing money at their favorite casinos the high cost of the property, staff, and complimentary items keep casinos from beating everyone.

Casinos lose money on a quarter of their guests.

If you think nobody is watching, think again! Of course, you never know which ones are being watched at any one time and everything is digital these days, so video from every camera is available for later viewing.

While older casinos like the Cal-Neva in Reno didn't bother with camera coverage for all of their table games as little as 20 years ago, modern casinos have so many cameras that the surveillance staff, as large as it might be, can't even watch all the views. Ten Things You Might Not Know About Casinos

Do you tip casino cashiers