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It's funny, and difficult to generalize, but some Muslims (literalists, largely) tend to be wary of dogs, considering them unclean and citing holy text to justify this bias. But, Sufis are another story altogether (and in turn are regarded, perhaps, with even more suspicion than dogs by ultra-conservative Muslims :)

Also, by association, I now recall your desert tale of the many wives, which I found ticklish and don't think I ever got round to telling you so ;)