I AGREE!!! I don't understand why people pee on the seats! The chances of getting a disease from a toilet seat are practically zero! I've checked! It amazes me when people do this at nice restaurants/places/clean restrooms! I guess I can understand at a porta pot or a gas station, but if the restroom is clean...I don't get it!

I don't blame the CMs for this -- I absolutely blame the guests! I am repeatedly disgusted by people for this very reason.
If you don't want to sit on the seat, that's fine. But LOOK before you leave -- did you pee on the seat? Then wipe it off! Do you think someone else wants to wipe up your pee more than you do?!
You don't want to touch the handle to flush? Okay, I understand. USE YOUR FOOT! I don't want to see your waste, and neither does anyone else.
A little common courtesy and consideration would make all the difference in the world.