In European casinos backbetting is permitted and betting boxes look like a mess. It's hard for the dealer to know every time where one has placed his bets. It's not necessery for him,anyway, except for insurance.
When you take insurance he asks "For what bets,sir?". But sometimes he don't. Even if he asks he may not check if your insurance bet is half your original bets.
So, if you consistenly put higher insurance bets than you should, sometimes dealer will not catch the mistake. Of course, if you lose the insurance bet, you should not yell "Oh, I made a mistake! I should have bet less on insurance."
Generally, this action do not receives heat. If the dealer catches your mistake he'll probably think that you don't know the rule exactlly or you are not really smart since you cannot calculate the half of your original bet or insurance is a sucker bet etc.
Of course there is the possibility after a while a couple of gorillas approach you saying "You owe the house some money, smartass!"
So, do you advice me to procced in such action? Is it too dangerous? I know many of you would say "Don't do it!". That's what I think, too. But, this is not a very obvious cheating such "doubling for more" or using devices etc.
I have to add that the crews here in my country do not have a clue about counting. Dealers strongly believe in flows and voodoo.Pit critters watch for dealer errors. Pit bosses are generally busy (rating players,chip trays,bringing chips or new decks,rarely watching a game,bored,flirting with female floor personel) however some of them are sharp and suspicious but I think I can psychologise them or fool them. If I get caught,I think it would be from a skilled eye-in-the-sky-man. The problem is that then I would be a counter-cheater and I'd be definatelly fucked up!