Stranger Danger (or: children are dumb)

We are watching Chitty Chitty Bang Bang and just got to the scene where the children get in the car with Truly Scrumptious, whom they do not know. I decided to use the opportunity to quiz my 4 year old on stranger danger, which we HAVE reviewed before.

Me: What do you do if a stranger asks you to get in their car?
Son (emphatically): Get in the car RIGHT AWAY.

Um, no.
Resuming stranger danger boot camp now.