My wife had an old chipped mug she loved. I hated it because I was convinced the crack was unhygienic. One day, while she was away, I threw it out.
When she asked, I suggested the cleaner might have accidentally broken it. My wife didn't get angry; she just looked sad and said the mug had belonged to her late aunt. I felt sick. I bought a similar one online, but of course it wasn't the same. This happened seven years ago, and she still doesn't know.