That bus is going to smell great.
They surely wouldn't use a fabric on the bus seats? I'm kind of hoping it's not a hard plastic either after a recent embarrassing situation in a steam room in Paris. I was lying down myself and the room got busier and busier so being the nice guy I am, I slide up the seat but my back fat created a vacuum resulting in a huge fart noise in front of 10 people, none of whom spoke English.