I watched an episode of the show 30 Days, in which a christian man spent 30 days living with a muslim family. He expressed fear that he was 'praying to the wrong god'. So he spoke with their equivalent of a pastor who explained to him that christians and muslims are both praying to the same god, just in different ways. So it's not an allah vs god argument; its more like allah is a different name for the exact same god. This makes even more sense when you consider that both faiths branch off of the same roots. So there really is nothing to get offended about, the two religions are in agreement about god.
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