It's a homeowner's nightmare- a 10m crater opening up in your front garden, and no knowing if your house is safe. But that's what's happened to the Jenkins family after a huge sink hole appeared outside their home at Upper Basildon, near Pangbourne. Experts say a collapsed tunnel may be the cause, as the site was a brick works in the 19th century. If finding a 32-foot wide crater - yards from the property just before Christmas isn't bad enough - the Jenkins family have been told their insurance company might not pay out. Rachel Hepworth reports.