I have to say that I don't get the paper towel on the bathroom door handle thing. I only began noticing it about 5-6 years ago. Throughout the day, you touch far more worse things than a bathroom doorknob. If you think about it, the TP itself and dispenser was touched by some dude wiping his ass. Do you get a napkin to get the TP? I know, you wash your hands after all that stuff and don't want to comprise their "integrity" by touching anything after you wash them but seriously, you ain't gonna catch the ghey by touching a doorknob that some other dude left some pen0r or rectum DNA on. Also, if there is someone in your office/school that ain't washing after wiping, he is also touching all sorts of other doors and things that you are coming in contact with anyway.
You just like it dirty, don't you?