I don't wash either, but I have been preaching to anybody that will listen that if your going to why wouldn't you wash before pissing.
think about it. What do you do after you take a shower. You put on clean underwear. So your junk is then clean. Now as you go through your day you touch countless things with your hands that have millions of germs and bacteria on them. Doorhandles, phones, money, keys, ect. So how much sence does it make to grab your junk with your nasty, dirty hands. Why not clean your hands before grabbing your junk so it doesn't get contaminated by your hands. Urine is sterile and made of 96% water. The rest is urea, salts and other wates that are generally not harmful. So if you happen to get pee on your hands what the big deal. And by the way if you pee on your hands than your a retard anyway. Learn to take a leak without pissing on yourself.