It's foolish to press your luck.
Sam is having a good time gambling at the local casino and is on quite a roll at the roulette table.
Sam wants to bring home some winnings from the casino.
Sam cashes in half of his chips and continues to play with the other half of them.
Sam continues to place bet after bet with all the chips he has in front of him.
Sam banks a decent amount of money from his night at the casino gambling.
Sam eventually loses a round and all of his money is gone.