I'm sure if the boss gets to find out the employees gambling habits and realise that he is addicted to gambling, even if the boss used to trust is boy their will be this strange feeling the boss will have concerning his money , if the money is in safer hand.
If your boss doesn't know about gambling and only knows the consequences of playing gambling, your boss might tell you immediately to stop gambling and ask you not to gamble anymore. But how can your boss know your gambling habits if you gamble after coming home from work? Unless you are gambling at work, your boss will know about it, and there is a possibility that your boss will fire you right away without any warning. A boss will make sure that his money is in safe hands and doesn't want his employees to steal his money.