One example of entering a conversation late

While having a discussion with Thing One about what to do if a bad person tries to trick you into getting into their car,
Me: Daddy and I will never send someone else to pick you up from any place. In an emergency, it would be someone you love in our family, like Nana or Papa or maybe Shannon. But probably just Daddy or me. We always have time to come and get you.
Thing One: It would just be you or Daddy or Nana or Papa--
Thing Two: Or Pencer (Shannon's dog). Pencer can get me on my shirt (grabs the back of his shirt).