I love people. I guess you could say I'm a "people person." But I really don't want to talk to any people in the bathroom at work. Not about work, not about kids or pets or anything. Here's the maximum length for any work-bathroom conversation, and this is for somebody I know well:
"How you doin?"
That's it. I've even found an out-of-the way restroom in another part of the building that I've been using sometimes to avoid the restroom chit-chat. I won't tell you where it is, because then my secret will be out.