One of my co workers came from Algeria, black man, Muslim and very "Arabic" with regard to manners, civility and especially women, good balance of respect and a bit of almost flirty civility. One day I said to him when we met in the morning: Salam aleikum! My other coworker felt very offended because I never had said "Bojour!" to him in French. Some people are easily offended when triggered at their nationalistic vanity spots.