This is because, on these islands, neither party wants to be the party to end the party. Let's say they've fulfilled their original goal (borrowing a recipe from you, maybe, or cadging a strimmer). I suppose I'm trying to end things now. Best to end things now, when you're still a welcome guest. Put down your glass and tell someone you're going.

Source: Stuff December 14, 2019 15:56 UTC