Kids will try to confuse their parents.
Just the other day I was getting the boys ready for bed and having a nice conversation with them about friends and people they like. Christopher calls his friends his peoples (don't ask, I have no clue where he got that from). Well, he was telling me that his peoples have cars, his peoples have monkeys,his peoples do this and on and on about his peoples. As I was watching Daniel finish up getting his PJ's on I turned and asked Christopher "So, what else do your peoples do?". At that point he gave me the strangest look of bewilderment and said "WHAT PEOPLES"
Moral of the story: Kids can make you think your going crazy.