Why do men feel it necessary to honk their horns when driving by?

I am minding my own business and some asshole thinks I find it a compliment when he honks and waves at me? Hardly! Mostly I think “chicken” or “tool”. Am I a bitch? Should Igo easy on these guys because this may be the only way they can express themselves? I don’t know….but if you honk at me, don’t expect me to wave back! Unless that is I actually know you!