On the road from Yosemite to San Fran (they love it when you call it "San Fran") there is a little store that should be named "Hey This Place Looks Like it Might Have a Bathroom." We stopped there years ago, and I remember the smell to this day. It took away the will to live. If you're ever driving to or from Yosemite, well don't. Yosemite is great but it's not worth risking an encounter with this bathroom. In fact, best to avoid California altogether. There's 56 other perfectly good states.