My guinea pigs hate taking a bath! I had to give them one 2 weeks ago when I discovered they had lice, eek! I brought one to the vet's office because they were scratching, he told me it was because they were bored. then a few days after, while holding them under a light, I saw something really really small moving around, so I called another vet and they gave me shampoo. Now my piggies aren't scratching.