A telling statement about our household

We're reading "Love you forever," by Robert Munsch. Grace knows it so well that she can often fill in the blanks if I let her. So we're reading the part about the 2-year-old driving his mother crazy. He runs around the house; he pulls all the books off the shelves, and he pulls all the food out of the refrigerator. He even flushes his mother's watch down the toilet! The next line is, "Sometimes the mother would say, 'This kid is driving me crazy!'" So here's what happened as I let Grace fill in the blank:

me: "sometimes the mother would say..."

Grace: "Bad words."*

I kid you not.

*OK, so to be fair, there is another line in the story about the 9-year-old boy saying bad words. But still.