Alunimun
I used to have an employer that said it like that no matter how many times it was brought to his attention.
When someone else said it to him that way he thought they said it wrong and "corrected" with the same wrong word.
He was used to hearing it from others the right way but it didn't self register that he was saying it wrong.
Aluminum
A lot of times, the person can't help it. It's just a habit or a speech issue. An old friend of mine used to pronounce it "aluminumnum". Not her fault. My boss at work pronounces "mandarin oranges" as "mandolin oranges" and my son says "libary instead of "library". Again, not their fault and they certainly aren't doing it on purposeWow, you'd think someone would show it to him in a dictionary. ...