Had a newish neighbor ask if he could borrow our lawn mower….sure. Well more or less every week he would come and get it out of our garage, use it to cut his grass, put it away without cleaning it or adding gas. In the fall we "mentioned" it was a good time to get deals on a new mower. He never talked to us again.
My mother and her new husband had moved into a new place and invited all the "kids" over for Christmas.
In previous years we would buy a whole turkey dinner from somewhere so no one (me) had to cook, so imagine my surprise when my husband and I walk in, my mother walks out of the kitchen, hands me a spoon and says, "Good, you're finally here", and goes to sit down in the living room.
After a quick and awkward conversation, it was determined that my job was to make sure everything currently in progress (or not even started) got to the table on time, while everyone else socialized. Basically, I was the help and should have realized that, so any feelings I had about that were my fault. I was a good cook, and my mother taught me everything (not) so I owed her.
So I did, and not knowing the family dynamics, my new step siblings were very thankful and appreciative of all my efforts, which caused a meltdown from my mother about how we all should be thanking HER.
That was the first time I used a phrase that has come in handy for these situations, "I'm so sorry, it will never happen again."
And it never did. They weren't happy when they finally realized what that meant.