I had one recently who assured me that my battery container lids refused to stay on their bases.
I explained that it required the batteries in the container before the top and bottom worked together.
I received a response, that I was stupid and it had no way to do such a thing.
I explained (semi-politely) that the magnets lock the top and bottom of the container and the batteries act as a means to stop it sliding off.
The user changed their 1-star review and admitted he had not read the "requires magnets across the description multiple times and the photos or my earlier responses. I now have a proud 5-star from someone who failed to understand magnets!