Not a lot of use though if the van heating is to work. And the hob when stopping for a brew. I was / am a motorcyclist though so risk means little to me . And on that note why would anyone risk using a scooter / motorcycle / pedal cycle when on holiday? The increased risk of an accident whilst using any of those almost certainly exceeds the increased risk caused by leaving the gas on. Better safe than sorry can be used as an argument to dissuade anyone from doing anything.Just stating that because there hasn't been an accident involving gas left switched on it doesn't mean it will never happen.Better to be safe than sorry.Its only a minutes job.BUSBY.