My roommate only washes up if he poops, never after peeing. Now every time I’m in any of the common areas I have to wash my hands after touching anything I haven’t wiped down. Thus, I wash my hands twice every time I use the bathroom; once as normal and again in the kitchen because I touched the taps, light switch and door handle in the bathroom which likely have groin sweat on them… /rant
True, I try to wash my hands before as well if I’ve recently touched like a public library doorknob or something but sometimes it’s an emergency and I’ll use the sides of knuckles like scissors.