Childish I know but DS has a party invite. He cannot attend as we have something else.
The parents of the party child did not RSVP to DS's last 2 party invites. The first one they turned up to anyway (lucky I had an extra party bag), the last one no response at all and did not attend. Fair enough not to attend but a quick text saying thanks but no thanks is not hard so the parents know for numbers.
AIBU to give the parent the same treatment?