Reminds me of a joke:
A man walks into a bathroom two find two urinals, but one of them is already in use by another guy. So the man walks up to the second urinal and starts to piss. A few seconds later, the guy who was in there first zips up his fly and starts to walk out of the bathroom. The man says to the guy who's leaving, "You know, when I was young, my mother taught me to wash my hands after using the bathroom." The guy who's leaving replies, "Yeah? When I was young, my mother taught me not to piss on my hands."
With regards to the question, I only wash my hands with soap and water if I take a sh!t or if I piss on my hands. But having suck a big c0ck, I don't have to worry about the latter.