I love my mother dearly, but she has a habit of making up facts in her head and it is incredibly frustrating.

She chided me for drinking 2% milk, because she said it has less Vitamin D than whole milk. I argued that this wasn't true, but she insisted and I had to show her the nutrition labels to convince her.

It's an asinine example, but this is far from an isolated event. She never reads labels, instructions, packaging, or anything of the like, and just comes to conclusions about things based on absolutely nothing but her own imagination.

Does anyone else know anybody like this? I don't understand it but it interests (and infuriates) me.