"Upon Sighting a Toilet on a Ledge"

One foot on the floor
And one upon the ledge
Keeps me leveraged sure
While doing my business.

That's right. In Sevierville, Tennessee, in Dolly Parton's home town, there's a local bar with good food and cheap drinks. Its main bathroom has a toilet that's on a ledge. I have some ideas on why it's like this, but I don't want to gross anyone out...