this happened more recently to me, ran into my systems programming prof at the store at 11PM and he RECOGNIZED me there. like immediately knew who i was. even though i was with another friend who didn't have any classes with him he still came and said hi to me
i later saw him at the self checkout with a bouquet of roses, a slice of cake from the bakery section, and... a 20oz bottle of water
he was an interesting prof



















