You've got to learn pole dancing somewhere.
"This is more than a trend or fad," says their website. "Sensual dance and fitness classes are a statement of positivity and acceptance, where you are empowered through graceful, seductive movements to feel sexy, confident, feminine, and fit."
As David Byrne remarked long ago, "To shake your rump is to be environmentally aware." And in addition to pole dancing levels 1-4, rump-shaking is taught here.
It's not such a big secret, to look at the testimonials on Yelp. There just might be enough bootie-shaking and pole-dancing going on in L.A. at any given moment that it could be measured on seismograph.