Sand Castles

Their friends were getting a divorce
But would come on the beach trip anyway,
A family life gone sour,
But deemed worth feigning.
Why did I care, what did I fear?
Surely not that faithlessness
Might by contagion spread,
But what our grandson might deduce:
That friendships could be changed,
Daddies did not all come home,
Pieces of evidence in a five-year-old's
Take on the world,
Ice-cream cones dropped in the sand,
Sand castles washed to the sea.