Your friend is correct. She also teaches bullshit. That'll be $5
1. Have your friend watch this vid
2. ask her if Kathy seems confident
3. remind her that a career criminal tried to rape her anyway
4. Once you've made the point, point out that he failed miserably, and was hospitalized with two ruptured testicles.
5. Ask her if she's ready to start teaching her girls to fight for real
Matt. didn't you have a story about being beaten up by a girl? Some kind of punk rock girl IIRC.
Or pinch the scruff of her neck while making a "tssst" noise.