Hello,
That is really weird how he licks everything.
Rocky will sit outside and lick the dog security screen,
Sheba will sometimes lick the carpet, but neither
dog is obsessed.
(paws maybe)

I am not sure if this is just a boredom behavior problem that
Samson just got used to a licking routine, or
possibly even a medical one.

I can't wait to hear some of the posts you will
be getting on this thread.

As for the soap, I would just put the soap in
a plastic container and put it in a draw.
It might not be convenient for you, but
it will keep Sampson away from it.

Karen