I have been a Realtor for a long time, and we would "caravan open houses" with appetizers at one house, main entree at the next and then desserts at the last one. That was a lot of work, but got other Realtors into our listings so they would be familiar. Hopefully, they may a buyer looking for just such a house. Sometimes, the entree was baked right at the house. The builders in the hay a couple years ago, actually faxed or emailed the entire menu to us that were having catered. It was delicious. Does this congeniality happen anywhere else in the USA?