Well no, I don't have 'evidence'. I just report what the expats in question tell me. I'm not singling them out, they just came to my mind due to recent conversations. I'm not trying to make a grander point or anything, and not every remark has to be completely exhaustive and evidenced to be 'allowed' into a casual conversation. If you want me to source every statement I make, you're going to have to pay me, just like my boss does when I write papers.