Remember when you were a kid and had to visit grandparents instead of going to that fancy ski and snowboard birthday party you'd already RSVPd yes to? (Me neither, but let's pretend our friends were that rich.) Maybe you weren't even able to warn your friend in advance, and they're out the 25 dollar per-head fee. Things happen, right? You'll just explain yourself at the next PTA meeting...unless the mom of the birthday kid is like Julie Lawrence, who wrote up an invoice and sent it to the family of no-show Alex Nash. Something tells me they don't have any more playdates scheduled.
(h/t The Guardian)