I must be the only one who thinks this but here goes.......
If everyone would just SIT on the toilet seat, then the nasty stuff would go INTO the toilet instead of being sprayed all OVER the toilet seat.
I will sit on a seat if it appears clean. I don't have any open wounds on my behind and as long as I don't touch it with my hands, I think everything is good. (I try not to think about what's on the seat anyway!!

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My biggest pet peeve is those who "hover" and don't clean up the mess they made while trying not to sit on the seat. In their quest for not touching the nasty seat, they have MADE the seat NASTY!!
I also have heard that urine is sterile, so getting a little on ya is gross, but it won't hurt you. The nasty stuff is the "other stuff". And that's why I wash VERY thoroughly, don't touch door handles and carry around wipes and purell gel with me.
Flame away!!! I'm a tough cookie!!!!