Dear Kind Elderly Man Behind me in Line at Subway,
I just wanted to say thank you for the tuna fish sandwich, SunChips®, and apple juice you bought for me earlier today after I got to the counter, only to realize I had left my wallet in the car. Although I left the stuff I ordered at the counter, then ran out to my car – conveniently parked directly behind Subway – to get my wallet, when I came back in, the cashier told me you had already paid for my meal. But you already left the store so I never got a chance to tell you that you are awesome, made my day, and we are lucky to have kind people like you in the world.
That is all 🙂