My first was Tracy Chapman. I presumed, despite the first name Tracy, that she was a white male. I was shocked to see from a picture that she was not only female, but that she was also black.
My Mum's ex partner presumed that Millie who sang My Boy Lollipop was white and was disappointed (80's) to discover that they were all black. From how he described it to me, it was almost as if he had fancied a girl who turned out to be trans - he felt ashamed.
Latest I can think of is an Irish singer called Hozier who my father assumed was a black man. He's a white Irish singer.
My most recent one was this very posh lady I had to deal with at work, and I presumed she was white, don't know why, but that bias was there. When a black girl turned up in jeans and a hoodie to meet me, I was a little shocked.
This is not a race row argument thread. I'm just wondering whether you've ever made incorrect assumptions based on accents or whatever. Jesus I hope it doesn't get me deleted. I started this with the intention of showing just how stupid our assumptions can be, not the opposite.
Anyway, I'll leave it to you.