'...as a general rule, it is best not to "guess"...' Especially when you start considering groups that span a variety of nations, cultures religions, etc. I recall some years ago, a major athletic shoe manufacturer had to dump a huge number of new shoes because some symbol or name on them was considered offensive in one particular part of the world. I was reading a Spanish dictionary once and was surprised to find that what I was familiar with as a slang term for the female genetalia among American Hispanics, was the name for an ear of corn in some parts of South or Central America. It can also be a generational thing. One still occasionally runs into older people who use the term "Colored," in all innocence, not quite realizing that it's "out of fashion," and might conceivably offend someone who doesn't take that generational factor into account.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken