Exploding eggs

I'm not safe to be left alone, my memory is going and I get too easily distracted. A little while ago I put half a dozen eggs on to hard boil for tea. Waiting for the water to boil I thought I would just pop onto the computer for a few minutes. Thirty minutes later I could hear an unfamiliar noise, today it's windy and the blind is rattling against the window and the stable door banging , I ignored it but then a definite 'bang' got my attention.

All the eggs had exploded, bits of shell and yolk all over the cooker and kitchen floor, the pan black. Oooops.

It's not as if we have plenty of eggs just now. They are selling as quick as they are laid and our own supply consists of the small eggs and those with poor shells. Cheese salad for tea, I think !