The things they say....

Public conversation number one:

Supermarket checkout operator: And what is your name?
Aidan: Aidan.

Aidan to me loudly: Is that a man or a woman?

(Skip forward to later discussion where I say that, if it is important to him to know someone's gender and he's not sure, to ask me quietly. He was a man, by the way).

Public conversation number two. Sitting on a bus:

Me (pointing out things of interest): And look, there's a person walking down the street. Hello!
Aidan loudly: Hello fat person!

(Cue short conversation where I talk about how it is not polite to comment publicly on a person's body shape, even if what you are saying is an objective fact and you merely mean it as an objective statement).