From the Finnish housing discussion:

This is like sterilizing space, not good for health.

YYY: So the case with us, in Russia: passed the lawn - entered the shit; approached the bench from behind - entered the rubbish; went to throw the garbage - took a rod to get away from the dogs; went up the staircase of the house (the elevator broke) - entered the sleeping room; pressed the button in the elevator - the gum sticked to the finger.
You should sterilize yourself.