Waiting for the bus in the rain.
I know the bus always stops by that tree, even if there's room in front of it nearer the intersection. Because the bus only runs 4 times per day, you always know who the bus driver will be, and so you know all the driver's quirks. Like, I know he stops at that tree... and that I have to be kind of aggressive about reminding him where I need to get off the bus.