I keep hearing and thinking how handy and what a time saver these things can be, but I'm a little unsure about leaving an appliance, ANY appliance on while I'm not home. To me, it's no different than having a stove on low all day...And the stove is built to a better standard of quality. I might, MIGHT, leave the thing on the garage floor cooking away all day, but in the house, on the counter? Not so sure. What say you all?