Why do men find sexual assault funny sometimes?

I was hanging out with some people and we watched one of those videos on facebook, where random girls in the street get their clothes pulled down in public by strangers, and their body gets exposed. They quickly pull down the strapless tops or pants/shorts of unsuspecting girls and then run away leaving the girls embarrassed/shocked/confused, sometimes the girls scream after the guys and curse them (tho I didn't understand what exactly they said, they were speaking some slavic language). The guys watching were either laughing or making sexual remarks, commenting on how much they enjoyed the girls shocked or ashamed expression, or how nice the boobs or ass looked and jiggled when the clothes got removed, why do guys enjoy and laugh at this type of sexual assault so much?

Why do men find sexual assault funny sometimes?
Post Opinion