Let's keep the dance floor clean, shall we?

I am, in all likelihood, not a parent (although anything that happened prior to 1989 or so is anybody's guess). However, I realize that there are many parents in TGTC community, and many of your children are approaching That Dangerous Age (As are many of the husbands, but that's another matter entirely. I'll have to post something about that one of these days)

Anyway, in the interests of taste and decency, I thought I would bring you this PSA about something called "grinding" that all the kids are apparently doing these days. Whatever happened to nice dances like the Bunny Hug or the Turkey Trot?