Sure, Next time you have a raccoon in an attic, just do to the local dog groomer, get some hair clippings and sprinkle them around...The raccoon will be running out of the house in cartoon fashion!!!
That's probably because the raccoon recognizes all the carcinogens the clippings contain from the soap/shampoo/flea & worm treatments and is smart enough to keep its distance.
Better than the clients I've had tell me they collected their own urine in a jar and went around dumping it around the yard to keep the mule deer out of the garden area!
A few of these folks the visual was hard to scrub from my memory.....
Yep - I have several of these "homeowner's remedies" books. All are laughably ignorant and inadequate. Stuff like "play a radio in the attic" and "put moth balls in the skunk burrows."