[Flycatcher]

When Oregon resident Jamie Shupe quietly walked into a Portland, Oregon, courthouse this June and received permission to change their gender from female to "non-binary," they did so without the assistance of any nonprofit or national transgender advocacy group.

What's with the plural pronoun?

Does he have a mouse in his pocket?

[Jagman]

It’s a clumsy attempt to come up with a new pronoun to describe these thingies.
I suggest a combination of “she,” “he,” and “it.” Thus you can say “they” are S-H-IT.

[MurrietaMadman]

I wondered about that and concluded it was a compromise the editor came up with to avoid calling it it.

[Bob]

Does he have a mouse in his pocket?

For shame -- how politically incorrect of you!!

Does he it have a mouse in his its pocket?