How come only your fingers and toes get prune in the shower and nothing else does?

Answer 1

All of the other body parts walked out on contract negotiations when that all went down with prune ... so many years back, uh, I think it was the winter of '79 at the Pittsburgh Conference. Yep, I'm sure. If those @$$3s are complainin' now, tell 'em to take it up with the Grievance Foreman. I've put my foot down on this one.

Answer 2

The outermost layer of skin most readilly soaks up water. The skin of your palms & soles is thicker than elsewhere, and when soaked long enough, will swell like a sponge and buckle up into pruniness. Other places won't prune because the thinner the outermost layer of skin, the less swelling.

Answer 3

your fingers, much like your lungs, constantly need Oxygen, so they get wrinkled from too much water...