Well, my goldendoodle doesn't but my golden/collie mix does. He is 15 yrs old and he licks, licks, licks. He's deaf and mostly blind so I guess licking is his hobby :-) We've tried to stop him but his tastebuds must be gone also as he doesn't seem to mind all the bad tasting stop licking spray. Cody hacks up hairballs that we catagorize as a mouse or rat - depending on the size. It is gross, but what can you do......
Nope, but then he doesn't shed so I don't know where he'd get that much hair from. Now he does barf up leaves, coconut husks, (when we were in Florida), grass, sticks, what looked like a part of a sock, (another part of sock came out the other end), paper scraps, parts of tennis balls.....but no hair.