My partner-on-probation has unresolved issues with tension and expressing frustration combined with a very Latin disrespect of anything mechanical (if I'd BOUGHT the goddamned Miele, we'd have been through five circuit boards already, LOL!)
I've tried countering this with everything from quiet, rational discourse ("Okay, take a deep breath, 1-2-3, blah, blah, blah), playful needling ("Mira, el conquistador!"), lectures ("Ya see these teeth, UNDER the timer?"), public embarrassment ("Yes, I hit your son with this flyswatter, because he deserves it"), and pure invective (let's not go there), only to realize that dealing with someone who is insane is totally pointless and you just have to structure the household, make wise choices regarding durability of goods purchased (we're talking shampoo bottles here!) and realize that behaving YOURSELF the best you can and not allowing yourself any slip-ups in that regard is the best way to influence someone you love, and someone who loves you.
I can be lazy, my musical taste is out there, domineering to a fault, and can and will go days without cooking myself a proper meal, so I guess, in the end, it all balances out.
It's expensive, though...