Reminds me of a TRUE story....
... My mother-in-law began showing signs of Alzheimer’s that progressed to the point we had her living with us. She was still somewhat functional and could be left alone for a few hours at a time. My wife an I had a meeting to attend so we left a frozen dinner for her if she got hungry before we got back. We arrived back home just in tome to find the kitchen filling with smoke- She was cooking the dinner just as instructed, with one exception- she did not REMOVE it from the box….