Question Author
Eddie, that chicken was expensive! However, I bow to your experience and advice. First thing tomorrow, I will ring an electrician. Actually, I will ring Homeserve or Homecare, with whom we have an insurance against electrical faults. (I never know which is which)
I can't cope with things going wrong in the house. It really mithers me!
We ate dinner in peace. The oven was off, as was the kettle, the toaster, the washing machine, dishwasher, tumble dryer, radio and table lamp. So far, so good. The dishes can wait until the morning.