How would you call someone like this?

I was thinking the same thing. When they get something in their mind at a young age they have a really hard time changing their thinking about it. I've suspected my sister was mildly autistic and her behaviors about certain things is the same as when she was 3 even though she has intelligence. Funny thing was that my uncle caught a groundhog in a trap and brought it to the yard when she was 3-4 years old and she called it a big "Sausage" because it was "ground-hog" a term my uncle used when there was breakfast sausage on the table.

well, the groundhog was just an example. but I think autism is a good definition for this twisted way of thinking.

@Klesingo: Well, I 'do' have to reiterate that 'autism' is just a different way of seeing things, and we definitely need to avoid any negative stigma. It's another anomaly of nature that needs to be addressed in a humane and mature manner. I would not be surprised if I didn't have some measure of autism myself.

indeed, like 4 years old. but it's a grown-up man. shame on him.

@Klesingo: He's got a problem if he thinks a rodent is a hog because of the name. Guinea pigs are not pigs either...

real milk from a cash cow is an excellent idea lol
or saying: how can somebody be a scapegoat who has no horns?
how can a human being be a black sheep?
thanks for input. 😊

Hehe, you're welcome. Sometimes things have to be reduced to the absurd before people realise how daft they're being. :)

[quote]The Dunning–Kruger effect is a cognitive bias in which [b]low-ability individuals suffer from illusory superiority[/b], mistakenly assessing their ability as much higher than it really is.[/quote]
Bingo! Many thanks! 😊