Wearing adult diapers for purposes besides medical and sexual.
Whenever I wear pantyhose, I wear high waisted pairs that go up to just below the bust, to enhance my figure. They look like this:
http://www.leggs.com/images/styles/details/20156-nude.jpg
Since they're so high up, going to the bathroom is too much of a hassle. The only way to go is by messing around with my skirts, blouses, waist belts, etc. - just to pull that waist down. And that typically makes my outfit look messy. So I've decided to instead wear incontinence pads below (which are basically... adult diapers), to eliminate the need for that. They look just like the one on the right:
http://upload.wikimedia.org/wikipedia/commons/a/a2/Adult_diapers_in_Tel_Aviv.jpg
They do get itchy and are a bit distracting, but they are more practical for me. Near the end of the day (which is long; my school runs from 8:10 am to 3:30 pm), I always have to go to the bathroom really badly, so typically I'd just leak while I'm walking home (I live just over a mile away, outside of the suburbs into forested land, so it's a long and lonely walk), and then I'd change in my bedroom and dispose of the pad. Obviously I never "go" during school hours - that would be really embarrassing - and I always save #2 for home.
Does anybody do something odd that can top that?