This topic name reminds of the song "Daytime Friends & Nightime Lovers" and now I have that in my head.

My pond caretaker recently heard from a friend that there is a local guy who has been fishing my pond between like 10PM to 5AM overnights.

I have this guys name now, and may have to send him a note (through the window of his house) asking him if he caught anything.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."