My dog is becoming increasingly stressed by life on our very noisy road. I've tried all sorts of calming tablets, tonics etc, but it isn't helping. I've been offered a caravan on a farm, rent-free until I can find something more long-term suitable (you know what it's like finding rental places that will take dogs at a reasonable price!), but there will be times when Bonnie has to stay in the caravan on her own and I'm worried about it overheating if the weather is warm. I know cars are dangerous to leave dogs in, but what about caravans? As they are bigger, if I left the roof vent and some windows open, would that be cool enough?