[bell-cot]

If it can be trusted to let the dog out on mornings when I'm sleeping in, then I'll credit it as real. Bonus if it'll also empty/rinse/refill her water dish, and take care of her breakfast. But serious penalties if it isn't reliable about giving her half the can, or leaves a can or lid where she can get at it. (The vet bill from that bloody gash on her tongue was not trivial.)

More generally - reliable, useful, macroscopic physical actions, requiring non-trivial judgement.

[docapotamus]

The cat is same for me. If it could pick the nightly dead rodent so I don't have to explain murder to the kids every day that would be great.

But ultimately what machine/device could show something? I appreciate not one reading could do this and it would have to be repeatable.