My dog knew when I was pissed off, upset or worrying about something.
If I was sat on the sofa he'd walk over really slowly, without making eye contact with me. He'd turn his back when he got right next to me and sort of back up toward me. Then he'd sit down and lean against my leg, still facing away.
He'd just stay there and stare straight ahead.
He stood by me.
RIP boy.