When my daughter was around 4 or 5 she seemed to always be accidently using profanity. Once we were at a park and she saw a squirrel run up to another one and steal an acorn. This made her mad and she said, "If I knew where that squirrel lived I'd yank him out and stomp his nuts!" Another time I had been out cutting wood with an ax. Later when we were at the park she walked up to a skinny little tree and said, "Daddy could cut down this little tree with his ass!" (meaning ax). Still another time we were out in the car and she saw a sign at a construction site that said said, "We build to suit." Misreading the word 'suit', she said, That sign says, "We build to bad word for poop!'" What made it funnier was that the sign just happened to be right next to a Port-a-Pot!