These photos are I think of a House Centipede, not an insect because they have more than six legs but a closely related invertebrate that requires a moist habitat. That would explain why he was an uninvited guest in my shower the other morning then!
He certainly seems to fit the description of this Wikipedia entry:- Scutigera coleoptrata, is a typically yellowish-grey centipede with up to 15 pairs of legs. Originally endemic to the Mediterranean region, the species has spread to other parts of the world, where it usually lives in human homes.
This week I have joined ABC Wednesday for the letter I