My husband saved for months to buy a pair of expensive headphones. One day I was cleaning, got the cable tangled in a drawer, pulled too hard, and broke them. I panicked because I had spent weeks teasing him about wasting money on them.
When he came home, I suggested the dog must have pulled them down. He believed me immediately and didn't even get angry at the dog. That somehow made it worse. Two days later I bought him a new pair and claimed I found a huge discount. The dog died three years ago, and I still occasionally think I owe him an apology.