Daddy's Leaving?

The other day we were running errands and drove by the hospital. Here is the conversation that Kallon and I had:

K: Mom, that's dad's school right there behind the hospital, right?
Me: Yep, it is.
K: Mom, why doesn't dad have school in the hospital?
Me: Because there wouldn't be any room. Right now dad is learning about bodies and how they work and how to make people better when they get sick. He has to go be in a classroom. In a couple years dad won't have to be in class all the time and will go back and forth from school to the hospital.
K: He is going to be a doctor at the hospital and help people get better? Like when I go to the doctor?
Me: Yes
*long pause*
K: Well when dad is a doctor is he still going to be my daddy?
Me: What? yea of course!
K: Is he still going to live at our house with us?
Me: Yes but there will be times when he is really busy so he might be as much.
K: Oh

That was the end of our conversation. I have no idea why Kallon thought he wouldn't have a daddy if dad was a doctor. Too funny. Where do they come up with this stuff??