I noticed dark specks in my cat Benny's fur about one to two months after going to the groomers. He was a stray more than two years ago but prior to going to the groomers I never saw fleas in his fur. I brush him almost daily and because he's snow white except for a black tail I'm sure I would've seen this before. A neighbor told me that groomers give pets a "pill" to prevent fleas from spreading to other pets but I'm skeptical about this and have never heard of it. I've got Frontline drops on him now and that seems to have eliminated them. I really liked taking him to the groomers because they also clip his nails. Also, has anyone ever tried those plastic nail caps? Do they stay on and really work? I keep looking at them at PetsMart but don't know anyone who has used them. My friend's cats are all declawed.