I have been thinking of an insurance service for gamblers, in which they were supposed to pay regular premiums. And while placing bets can get back at least a small amount back if the lost amount is a huge one. Myself too haven't come across such services. What you people think of an insurance for gambling.
Gambling is called gambling because it takes guts to put money on the table without knowing if you are going to win or not. If a casino would offer an insurance for people who gambles, it might be an asset for them because people would come knowing that still they will not lose all their money. But it will just lose the feeling and culture of gambling since you will be a loser after all if you are not lucky enough.