A mother cat was teaching her kitten cat lore. She explained that this was the duty of all mother cats since before recorded history and it was important that her kitten would not do anything to embarrass her when she allowed her master to play with her.
At the end of the lesson, after she had gone over all the cat rules such as ignoring anything the human might say, she asked her kitten if there was question she might want to ask.
The kitten said, "Momma, you have given me all the situations a cat might get into and the proper cat-responses but, what should I do if a new situation comes up that you haven't covered?"
Momma cat responded, "Oh my gosh! I'm SO glad you asked that. I've gotten into so many rules that I forgot the most important first rule!"
Kitten asked: "What is that, Momma?"
Momma drew up and looked kitten right in the eye and said: "When in doubt -- wash!"