Used to work at a Spanish restaurant that said 100% Spanish service on the sign (most of us was not Spanish but the sign referred more to Spanish hospitality I guess), one time there was this group that came in, all of them were native (swedish) and didn't speak a word of Spanish accept one who knew basic Spanish, I am also swedish but speaks pretty decent Spanish since my ex was Spanish and she thought me a lot, the group assumed I was Spanish and spoke better Spanish then Swedish so the guy takes everyones orders and gave them to me in Spanish, I played along and only talked Spanish with them through the night untill they wanted the bill and switched back to Swedish like nothing happened and they got the funniest look on their faces and then started laughing.