Is it ok to leave ones SD in the car when running an errand?
Generally speaking, it is unwise to leave any dog unattended in a car, whether or not the engine is running. Dogs have died within minutes of being left in a car, and many states have passed laws prohibiting this in summer months. When temperatures are cooler, leaving your SD in the car can be a viable alternative to leaving the dog at home if you are going somewhere a SD cannot go (e.g., some churches), or when one of your errands is very brief, and saving time is important.