Your question concerned security guards, didn't it? That's always a challenge for us because most of the time it's not the embassy that hires those people. In some cases, it's local government employees. That's the case in China, for example. It's very hard to insist that those employees speak English or French. We try to hire people who speak our official languages, but that's not always possible. In Rome, however, our embassy has managed to get the security agency to agree that security guards will speak Italian, French and English.
It's one of the best practices, and one that we encourage other missions to follow.