I think only one icon would do, the toilet icon. But hey, we could have the EvE ask if you want to wash your hands or not.
If you don't you get random messages on the chat interface that goes only to you on occasion:
"You feel bad that you did not wash your hands."
"You think back to your toilet episode, and think that you maybe should have washed your hands."
"You feel happy because you chose not to wash your hands. Mother ain't around anymore."
Or maybe you get the very horrid message:
"You can't concentrate much because your hands stink."
Or maybe you even get:
"You can't focus on anything, because your hands stink so much."
None of these messages would actually effect gameplay in any way, but are kind of humorous, and would make EvE a tadd less serious. hehehe. I think the game may need it. Because if you are in a very SERIOUS corp, ....
you know the rest.