Sadly Pavlovian
A long time ago I trained myself to recognize the sound of delivery trucks, and FedEx trucks have a very distinctive engine noise that I can hear as soon as they round the top of the street.
I live on the corner of where two streets meet, and especially now that the weather's warmer and I have the windows open, I can hear that noise. Almost immediately I know from the pitch of the engine if they're going to stop, because they'll let up on the gas almost as soon as they're within hearing range.
The problem is, though, they do the same thing if they're going to take a left onto Briar Patch Road, the road that intersects with ours. So at least four or five times each day for the past few days I've raised my head in anticipation of getting a letter or package from FedEx, only to see the truck slow, turn, and drive away.
It makes me sad.