[Icky topic ahead]
OK, folks, as someone whose day job actually involves cleaning public toilets, let me say that this practice, as demonstrated by Tyra Banks, should be outlawed by Constitutional Amendment. (If you don't want to watch the video, it's the practice of "hovering" above the toilet seat so as to avoid making physical contact with it, on the deluded notion that the toilet seat is swarming with germs by the billions.)
First, "hovering" above the toilet seat does nothing to "protect" you from "germs", since in a normally-maintained public bathroom, the toilet seat is not even close to harboring the most germs. In point of fact, if you go into the bathroom, do your hover thing, and then exit the stall by touching the stall handle with your hand, you've exchanged more germs by touching the stall or bathroom door by far than you've avoided by not allowing your delicate posterior to contact the toilet seat. And guess where the most germs are found? Why, on the floor -- so if you dutifully put your purse or shopping bags or whatever on the floor, you've just picked up even more germs than by touching the door handle!
(And I'll bet you toilet-hoverers go right from your hovering to handling shopping carts, right?)
And second, all hovering accomplishes, in most cases, is urine all over the toilet seat, which someone has to go in and clean up.
So stop hovering. All it does is make a mess and it doesn't spare you any significant germ activity at all. Thank you.