When I was a kid, a two hour public skating session at a local rink would always be broken up by the occasional voice over the loudspeaker announcing things like "The Next Skate Will Be For Ladies Only" or "...Couples Only" or "...Men Only." Everyone kind of knew that whenever the "Men Only" segment was announced, it meant that for the next five minutes, the ice was about to suddenly turn into a testosterone-fuled blurry mosh pit. I've got to admit that when I was little, I really had a blast. It sort of made me feel grown up, being able to keep up with all the older guys on the rink. Of course, once the all-male session was over, things would usually get back to normal pretty fast.