This means that when eventually their room is in another city or even another country you don't notice so much.
Anyway last night we suddenly though, "Oh yes, Gwilym went out to the end of lycée ball."
Elegantly clad in his sales suit he'd gone off to celebrate the end of his education.
We remembered at bed-time, and idly wondered what time he'd be back and whether good parents would wait up for him.
Then Pat's phone rang.
He was warning us that he might miss the last bus and so stay with his friends and come home the following morning.
But in the end he cycled on the city bikes to Pessac Centre, then walked home from there.