Why do some people only pretend to wash their hands when they go to the toilet? They clearly feel enough social pressure to put on the show, splashing water around, but equally clearly they don't feel any need to actually clean their own filth from their disease-ridden hands. The only reasons I can imagine are laziness ("Soap is so much hassle, I'll just pretend"), incredulity ("There's no such thing as germs") or stubbornness ("You can't tell me what to do, SOCIETY!"). All of those positions sound crazy to me.
Mokalus of Borg
PS - I guess that's the way it is with anyone who is different to ourselves.
PPS - These people, however, are a little bit different to modern ideas of hygeine.