you know what you don't say?

Peanut: "You know what you don't say? You don't say 'oh my God'. You don't say that"

Mommy: "I know, so you shouldn't say it now"

Peanut: "You can only say 'oh my God' when you're praying, you can't say 'oh my God' any other time."

Mommy: "I know, and you just said it 3 times and you're not praying"

Peanut: smiles mischeviously, I swear she knows exactly what she's doing.