My youngest nephew, when he is in trouble, will say (to whoever is punishing him), "I'm not [yours]!" For instance, if I am bodily removing him from a situation where he is kicking a sibling, he will say, "I'm not Auntie Cornelia's!" Or, if it is his father who is doing the removing, he will say, "I'm not Daddy's!"
When he is in a good mood, he will say, "I'm Mummy's, and Daddy's, and Auntie Cornelia's, and A's (his younger sister)."
The other day, when he was letting us know how much he loved us in this way, his father said, "Yes, but this morning you said you were the garbage truck's!" You have to understand that he is of an age when garbage trucks are very impressive/attractive.
Evidently this reprimand had an impact, because tonight when I was on the phone with my sister, and he was being excited to come pick me up from school, he said, "I'm Mummy's, and Daddy's, and Auntie Cornelia's, and A's, and not the garbage truck's."
"Not the garbage truck's?"
"Not the garbage truck's."
I felt loved.