Don Corleone (The Godfather) has this to say:
“There are men in this world,” he said, “who go about demanding to be killed. You must have noticed them. They quarrel in gambling games, they jump out of their automobiles in a rage if someone so much as scratches their fender, they humiliate and bully people whose capabilities they do not know. I have seen a man, a fool, deliberately infuriate a group of dangerous men, and he himself without any resources. These are people who wander through the world shouting, ‘Kill me. Kill me.’ And there is always somebody ready to oblige them.”
One day he'll meet someone more aggressive and more capable at fighting who will teach him a lesson he may survive to remember.
Until then, he'll look like he's winning every confrontation but, unknown to him, someone will one day drill a hole when he's off the boat. Or one night when his generators are blanking out all noise from outside, someone less capable of face-to-face aggression will be pouring a bottle of full-sugar coke into his generator fuel tanks or putting sand in the genny oil filler cap (and possibly the boat's engine for good measure). He'll pay. Someone will punch him from behind like this.
And, if not, he'll still be first to a coronary.
Vin