There's a lot to be said for a fridge that moos at you when you leave the door open. Especially when the whole thing is tilted such that the door usefully self-closes, except when allowed to do so with excess velocity, whereupon it bounces open leaving a gap that's just right for letting the air circulate while looking closed from a distance. DAHIKT.
Unfortunately, I've yet to come up with an algorithm to time the moos so that it doesn't pester you while you're rummaging about in the fridge, without also waiting until you get to the top of the stairs before announcing its non-closedness. There's an unfriendly BLUE LED too, but barakta routinely ignores blinkenlights, especially when distracted by a) caffeine b) stairs