The picnic table in the shade of the trees, next to the pirate ship playground on the shores of the Firth of Thames, looked rather inviting on a hot day.
So, while the two grandsons climbed to the deck of the ship, swished cutlasses and fired flintlocks, my daughter and I strolled over for a rest in the shade.
The children played happily, the waves lapped softly on the beach, a gentle breeze took the edge off the midday heat and some passing shorebirds piped away melodically.
It would have been idyllic ... if hadn't been for the rubbish scattered all around and the unpleasant odour wafting from a disposable nappy someone had thoughtfully disposed of under the picnic table.
We were outraged. What sort of person dumps a disposable nappy under a picnic table in a family playground? It's bad enough that people licking icecreams, drinking milkshakes or eating fish and chips feel it's okay to just dump their rubbish on the ground instead of walking a whole 20m to the bins provided. But a soiled nappy?