It's a drizzly Sunday night as you hurry into a convenience store for some warmth - or, at least, to buy an umbrella. As you walk in, you spot the cashier drowsily counting the money. He lifts his gaze to you, nodding in greeting. You recognize him since you’re both in the same major - wasn't his name Daniel? You grab an umbrella and a snack before going to the cashier. He silently scans your items.