If he wants to get a CCW, he needs to be sure he gets and stays squeaky clean. Because in case of a shooting, he should be prepared to be examined with a fine tooth comb by the police, the D.A., and the shootee's family lawyer who would please like to find an excuse to grab everything he owns and everything he can earn for the rest of his life. A lot depends upon where he is, the local attitude toward guns, the local laws, and the circumstances of the shooting. But he should never take a chance of being caught with his pants down. Like a frequent poster on the forum has in every post, "Murphy's law has not been repealed". And, sure enough, if he is in a shooting it will be when he has the stuff in his blood.