“…They used it as an adjective synonymous with "sensitive" (Shao and Hill, 1994;Fahy et al, 1995), "offensive" (Barnes and Doston, 1990;Waller, 1999;Fam and Waller, 2003;Prendergast and Chia Hwa, 2003), "controversial" (Rehman and Brooks, 1987;Fam, Waller and Yang, 2009) and "unmentionable" (Wilson and West, 1981;Katsanis, 1994). They focused on the marketing of unmentionable, controversial or offensive products, ranging from goods whose consumption is thought to be potentially dangerous (socially, morally and even physically) like alcohol, 3 tobacco and drugs, to products and services that are related directly to life and death matters, such as funeral services, life insurance, 4 contraceptives, pregnancy tests, vasectomies and abortion (Schwartz, Johnson and Lee, 1986;Crosby and Stephens, 1987;Trompette and Boissin, 2000;Brown, 2002), or as products which may be associated with murder, like food products that people find disgusting (Merdji, 2002). Given the disparity of the products and services in question, some studies have tried to classify them on the basis of their controversial nature and people's difficulty in mentioning them or admitting to use them (Katsanis, 1994).…”