I don't get it

All the time I see guys in my neighborhood walking with their girlfriends and instead of holding hands or having their arm around the girls waist or shoulders, they’re dragging this poor girl around by a hammerlock, their arms around the girl’s neck.

WTF? Do some girls think that’s cool? If I were a girl and some guy did that to me, he’d get one warning before I put him in the hospital.

Yuck.