I'm not trying to imply that it's likely to occur, just that when talking on the scale of millions of homes with toasters in them, some of those convenient and ingenious design features would probably burn down many houses that a more modern design wouldn't have. Tons of people leave toasters plugged in all the time but you're not going to ever accidentally turn on a modern version where you have to push down a spring loaded plunger to switch it on.
