why?

why do women in the gym find it necessary to walk around the locker room completely ala birthday suit....for about 10 minutes...having random convo's, checking their butts in the mirror, standing on the scale, sitting on the benches...etc....WHY? AND WHYYYYYYYY did one of these such culprits decide to graze her naked butt along my gym bag this morning. i seriously got the disinfectant spray from my non-English speaking nysc worker and doused my bag. said bag will now be sold on Craig's list. that's my little gym story for today.