Mycroft Holmes (looking at a screen): Why am I looking at this?

Sherlock Holmes: That’s her, John and Mary’s baby.

Mycroft Holmes: Oh, I see, yes. Looks very… fully functioning.

Sherlock Holmes: Is that really the best you can do?

Mycroft Holmes: Sorry, I’ve never been very good with them.

Sherlock Holmes: Babies?

Mycroft Holmes: Humans.

From Sherlock – Season 4 Episode 1: ‘The Six Thatchers’ (4×01)