Public toilets freak a lot of people out and they will go to extremes to avoid contact with the porcelain. Nelson Ayala, however, has designed a toilet that doesn’t require your rear to touch anything.
I see one drawback with this design. Apparently you have to take off your pants or skirt to use it, since you must mount the toilet to use it. But under extreme conditions, I guess getting half naked is better than touching the creepy crawly bacteria on most public toilets.