Anybody want to take a guess on the percentage of door handles with fecal bacteria on them? My guess is close to 100%.
Which is why whenever I use a public restroom, when I've finished washing my hands, I use the paper towel I've dried my hands with (if of course, there's no automatic hand dryer) to shut the water off (if it's still running) and even open the entrance door wth it. Can't be too careful. I've seen too many guys doing their business and then sauntering out of the place without washing. In fact if you're a germaphobe, a washroom that has just paper towels is better than an automatic washroom with no paper towels because you can use the paper towels to open the door.
Especially in SF!