Imagine if/when appliances have general AI. Will their cycle-finishing be cracking a joke or having an orgasm? And, will you have a choice as to which? Will they refuse to comply if you don't talk nicely to them, will they get passive-aggressive/maliciously-compliant, and will they hold a grudge?

Douglas Adams described automatic doors and elevators that emit small pleasure sounds as they opened decades ago (in the hitchhikers guide to the galaxy)!

The parody future is now!

Red Dwarf has an AI toaster that keeps trying to coax Lister into having toast and loudly complains about the misery of being a toaster that doesn't get to fullfil it's life purpose when he doesn't want any.

Patent pending!

And will you have problems if your dishwasher finds your fridge an annoying jerk?

Or, say, your Samsung washing machine detects on your home network your Bosh fridge and try to use any vulnerability to brick it (and the fridge tries to brick the washing machine too). Appliance war...

If people know this, it would be a incentive for consumer to buy all from the same brand. If all manufactures knows this, they would need to pay more attention to security (or at least resilience).

Not sure what/who wins in the end

They'll be hacking each other and fighting with knives and silverware when your back is turned.

Imagine having to discipline your appliances after they blame each other for starting it.

the black mirror we deserve

I'd be more worried if my dishwasher found me an annoying jerk.