Self defense teach many usefull things. Like how to fall without breaking a bone. That comes handy if you trip.

It might also help to get away from someone. Or, on a more realistic scenario, to push a bigger drunken guy at a bar away from you and avoid to be grabbed. With the extra benefit that the guy won’t be able to claim that you sended “mixed signals” like they do when you “just” say no.

Learning about keeping balance was eyeopening. ^_^