UPDATE Today my wife told our son to tell me that we should play in the backyard, because driveways are dangerous.
When she came to pick him up, she repeated that and said she could send me an article on its dangers.
As a sidenote, our daycare provider emailed my wife and I this message:
We were eating lunch, J (was) telling us her disneyland adventure and out of nowhere... first time E talked about situation at home
E: you know mom and dad live in their own house Teacher: how do you feel about that? E: sad but they love me Teacher: and E love mommy and daddy? E: I do Teacher: How much do you love your mommy and daddy? Lucky me, I got a long tight hug
I'm feeling like replying all with this "That's sweet and :("