There's a great article today in AM or Metro or something about people who do disgusting things on subways. Needless to say, there are unlimited blogs about this. This one is good too- subwaydouchery.com. I think my bar is pretty low, though. Seat hogs and pole leaners are one thing, I don't really mind. But then there's the stuff not for the faint of heart. Like this gem for example.
Yes, he's clipping his toenails.
I even close the door to the bathroom lest I gross out my dog when I clip my own toenails, but maybe that's just me.