Like going into a restaurant and ordering a sandwich with no mayo, and they put the mayo on anyway, and then you ask them to make it again and they just scrape it off and hand it back to you...

Yeah, I've heard some of those no-mayo religions are pretty strict!

There's a new branch of Subway opening just a few hundred yards from my house, so I'll be able to practice being very specific about things in there before I next visit the US.

Peter