DH never does, and I cringe when he comes out of the loo and immediately makes tea, taking teabags out of the container with his unwashed hand!! Ugh.
I've noticed it before, but this week I have had workmen in the house. I put out a fresh clean towel in the bathroom with new soap and a box of tissues. None of them even touched even though they were in there multiple times! Why do men do this - I couldn't imagine not washing my hands after visiting the loo!