"I won't."

There was no need to, specifically; that he'd do it on his own, without asking for attention, was more than enough.

"Just because we all live on a train doesn't mean... that we tell each other everything, I suppose."

On to the next wire, and the next...

A mongoose whooshed by her face; while she couldn't see it as one, she still perceived enough of a presence to frown at it.

The mongoose froze in place.

"... Huh."