Potty training conversations with J

J has been potty training for about three weeks now. She is doing pretty good most of the time. The other day I was changing Aa's stinky diaper while J watched. She said, "Oh it's poopy. Bad poopy, bad poopy." I explained to her that poop wasn't bad, it just needed to go in the potty. She thought for a minute and said, "Bad Aa, Bad Aa." I then explained that Aa was a baby and baby's poop in their diapers. Then she said, "disgusting." I didn't know she knew such a long word. Let alone it's proper usage.