Dad: How far away is the sun?
Me: A little over eight light minutes.
Dad: I meant in miles.
Me: Well, light travels at about 186,282.397 miles per second, so the distance to the sun would be a little over 186,282.397 × 60 × 8 miles.
Dad: I don’t think I’ve ever told you this before, but… Piss off!
My late lamented mother never swore - but her reaction was very similar when, having being asked by my equally late and equally lamented father if she wanted a snack, and having replied that she would like a small sandwich, she had delivered to her a one inch square cheese sandwich, cut on the diagonal...
I like your father!