Did you hear about the woman whose little dog kept biting at a place on his side? She called her vet, he recommended a prescription depilatory to remove the hair so she could get a better look at what was bothering him.
When she went to the pharmacy to pick it up, the pharmacist told her, "this is strong stuff, you can use it full strength on your legs but dilute it 50% if you want to use it on your underarms."
The woman said, "you don't understand, I'm going to rub this on my little Schauzer."
The pharmacist said, "well, in that case, dilute it 80% and don't ride a bike or slide down a bannister for two weeks."