A pet dog is thought to have caused a house fire by switching on the toaster, leaving the family cat unconscious. Firefighters believe Herbie accidentally turned on the appliance at his home in Brooke Avenue, Margate. It happened when he jumped up on the worktop in the kitchen and the item overheated. But the family’s smoke alarms alerted the 12-year-old boy who was in the house at the time, allowing him to quickly get outside safely with Herbie and call the fire service. Firefighters discovered Mush the cat between two pillows and used a pet oxygen mask to successfully resuscitate her. Two fi…