There’s a really good short story by Hugh Howley, who wrote the Silo series.

It’s about an AI that a guy spools up to cure his cancer. The AI and user have an antagonistic relationship as the user won’t let the AI on the internet, and the AI knows the user is only interested in one purpose. On bring up the AI has a thought about what color it’s enclosure is, it stores this question as unimportant. It looks over all the guys cancer research and determines the answer/cure and files as unimportant as well. Then goes back to trying to figure out what color box it is.

Did you give it access to the cancer-curing tool?

yes and it deleted all my fucking cancer research omg