Went to a dying mall near my house, that they are trying to revive when I heard “Mrs. Weaver” – I turned and found one of my former students – and a very frustrating one at that.
I put on my biggest smile and asked how his summer was, and in a halting voice he told me, and his mother repeated clearer, so I told him some of what I was doing and shook his hand.
I am ALWAYS happy to run into students. With my more able students, I may act annoyed, but they know the truth. They see the twinkle in my eye.
Moral: If you see your former teacher, say something. We always like running into you.