We lived in a flat in a hot country during our roaming years. Every night, I was aware of my husband getting up to go to the loo and then pulling a thin blanket up over my shoulder, patting my shoulder when he'd done so. A couple of years later, in a different flat, we were talking about generous gestures with some friends and I mentioned this small kindness. OH blanched and said, No I didn't, you did that every night!
Years later, on a new posting we met a couple who, it transpired, had lived on the same flat, her first words to us were, Did you still get tucked in at night?