I love my slow cooker and use it quite frequently especially in the colder months. I've been chatting to a friend tonight who would never have one as she thinks they are a potential fire hazard as they are left unattended. I leave mine on overnight and occasionally in the day, check it's on low and has enough liquid in. Isn't the purpose of a slow cooker to enable one to come back, after a hard day at work, to a delicious cooked meal ready and waiting? Is there any basis to her concerns? I've never thought so but maybe I'm wrong?