MIL lives nearby and sometimes comes over to our flat while we are out (with the excuse of) to drop off some eggs or washing we'd put on her line etc. While she is in she will potter a bit, have a cup of tea and wash anything in the bowl. She is just bored really and we don't mind.
Yesterday we couldn't find DH's favorite mug which I bought him as a gift, hand painted, not cheap china etc. MIL sent DH a message to say she'd accidentally broken it. He sounded annoyed but we agreed its not the end of the world. But I saw his messages later and their conversation went like this:
MIL. btw I broke your mug, i was washing up and it just slipped, sorry
DH. that's ok i didn't like it that much
MIL. worked out ok then!
Now I feel so betrayed, can't even look at him and don't want her in the house