I was under the impression that the Nest did work the way you would like— you tell it a temperature and thats it. The only "learning" involved was noticing you

I was under the impression that the Nest did work the way you would like— you tell it a temperature and thats it. The only "learning" involved was noticing you were gone and letting the temperature change a bit more, and when you come home it goes back to what you set. (There's also some bit about reducing the temperature a bit during peak load). As with a smoke detector, I would never expect it to disable its smoke detecting function unless I pressed some button.