Brits generally when speaking any language other than English: 
Europeans when asked to call Romani people anything other than a slur
Had a pretentious friend correct me on the pronounciation of Ibiza and Barcelona, stating the locals say it the way he said it. I held my tongue, and steered the conversation to other things.
He mentioned Germany, and with the arrogance and smarm of a thousand reddit liberals, I hit him with, "Actually, the locals pronounce it as: DOOOOYtchLANnnn." Saying it as obnoxiously and with as much spit and I could fling.
If it ever happens in the future, make sure to hit them with a “that’s not how it’s said in Catalan”.
Be damned if an American is gonna lecture me on anything, let alone like this.
Wtf I’m literally Puerto Rican YER A FUCKING BRIT YOU DON’T KNOW SPANISH, STOP LISPING ANGLO
The Spanish dialect closest to them does the “lisping”, in fairness. Historically inaccurate to call it a lisp, tho, unless you count English TH as a lisp as well.
The thing that gets me when I try to explain Spanish pronunciation to English speakers is that when I tell them the vowels are always pronounced the same way, it goes in one ear and out the other. You are literally making it harder on yourself by applying English spelling rules to it than if you just memorized 5(!) vowel sounds.
Americans pronouncing the names of US cities with a french language origin hurts me physically. Boise and Des Moines I hate you.
Still blows me away that Lafayette thought it was cool that cities named in his honor were called Fayetteville.
Brits say it very slightly better than americans. (source: am from spain)
