As I phased back into listening mode this is what I heard.
"Oh my goodness Mummy! That man! THAT MAN!"
"Yes, what about that man? Remember to use your inside voice."
"That man, Mummy" his voice drops into a little boy whisper and he looked extra-serious - I waited to hear that the man had cancer or something - it was that kind of moment.... like an "I see dead people" moment now that I think come to think of it...
"That man is human."
He then looked at me as if he had just discovered gravity or a way to make my latte bottomless.
And I failed as a mother and LOLLED - a lot!