Ok, so I'm not actually going to do that, and I'm actually a very nice person and DH and I will continue going out of our way for his colleague and his wife as they embark on their exciting journey having their first baby in August.
But..........colleague wants a few days off to decorate their nursery with his wife at the end of the month. One of those days is DD1's 6th birthday, for which DH wanted a day off so we could take her bowling with some friends (which she's wanted to do for ages). They can't both have the same day off. Colleague said kindly that DH could have the day off, of course. He's just texted to say wife not happy with change of plan and will be having the day off himself .
They've only got loads and loads of weeks to get the flipping decorating done, and DH has offered them to have any other time off at all - he'll cover - but no, of course, decorating a baby's nursery (PFB though...) must be done on the exact day that an existing child is having a birthday. Gah!
So AIBU to slightly want to say to her 'I'll remember this...'? (just to re-iterate, I would never, ever say this, and will no doubt forget it tomorrow when I've got over the mother lioness rage! )