If the proportion of religious protests sounds low, that is probably because most marketers would see no advantage in a sales strategy that might prompt a significant share of consumers to boycott their product. So many religious complaints are either anticipated successfully or nipped in the bud. But Harley-Davidson, a motorcycle-maker, has tested the limits with a billboard in French-speaking Quebec, where a vigorous debate about secularism is in progress. It is a composite picture of two female faces wearing both a hijab and a helmet, under the slogan: "Á Chacun Sa Religion"—roughly "to each her religion"