I had hopes to surprise them to a fancy day out at the mall followed by a really delicious dinner out and home for movies and ice cream. But I forgot to ask their mom to pack them something dressy, and in my usual way I stepped on kid toes and hurt their feelings trying not to spoil my surprise. They probably would have complied if I'd been forthright but having your Aunt tell you you have to dress up for no apparent reason is not the same kind of fun as getting girlied up the way you feel best and going out for the day.
I know all too well what it feels like to be at someone's house and regret that you're there at all. When I was a bit younger than them my own mom (hi mom!) would leave me at her sister's house for