they're common enough, here, though not in my actual line of work, where people are generally literally on the floor, working with disabled kids...need a better range and ease of movement than skirts and dresses would allow. as such, i have a lot of time on my hands though i try to keep my mind occupied. it was quite powerful, especially for a training session. the police who responded reported they found scratches on her chest and a bruise on her cheek. 