Elizabeth Enright is so right! I've had invitees, tell me they can't come to a picnic because their kids have sports practice, or are sick, they have vet appointments, hubby's getting wisdom teeth extracted, their car's being repaired or landscapers /painters/contractors are coming that day; who then post pics on social media showing they spent that day at the amusement park, the beach, kayaking or at a major league ballgame.