Dear Upstairs Neighbor: We all know that apartment walls are paper thin, but did you know that the floor is equally so? What I’m trying to say is that I can hear you pee... and leave the bathroom without washing your hands. Every. Time. I’m just saying that it’s gross. I’m hoping that you’re slathering on the hand sanitizer before leaving your apartment, but I’ll be opening our building door with a covered hand just in case.