This is how I differentiate between my good appliances and the ones who are not allowed access to the network lest they troll me. The good ones sing a happy little ditty when they're done, and maaaaybe ten minutes later chirp again to say "hey just in case you forgot!"(also the fridge automatically bc it beeps cheerfully if I leave the door ajar and I need that). The taunting ones sing flatly "hey your laundry is clean but wet you have ten seconds to get drying or I will purposely start making mildew happen".