not fun to do

On Sunday they must have sung "Fun to Do" in nursery because Callie sang it a lot Sunday afternoon. We sang "Cleaning our room is fun to do" as we picked up the toys yesterday before Jack's nap. I was working on something in my hobby lobby and Callie was standing on a chair trying to stretch herself as far onto my workspace as possible so I told her for the 2nd or 3rd time to sit in the chair, now! She started to sing, "Sitting in the chair is not fun to do, not fun to do, to do, to do!" I couldn't believe she'd come up with that! She's a crack-up!