We were delighted that a boy in Silas's class had a birthday party last weekend, giving us a chance to socialize with the other parents. We had already met a few during drop-off and pick-up at the school. By contrast, it has been harder to get to know the families of Maeve's classmates, since the third-graders are more independent and the families don't hang around the kids as much. Also, those families have been together for six years, since the kids were 3 years old.
Suppose that you were throwing a birthday party for a 5-year-old. When would you make it end? 7pm? 7:30pm? 8pm? That's when Silas couldn't take it any more, but when Maeve and I left at 8:30 we were among the first to leave and other families were still enjoying it. The party had started at 5:30.
The previous night I had been at a conference in Cádiz, and I left the banquet at 1am when it was still going strong, with the entertainment having started after midnight.