What are some of the areas considered 'touchy' for businesses to be operating in?
Touchy areas are those that violate the norms of what we expect to see for sale or advertised in society, so this is a moving line. A few decades ago feminine hygiene products were very touchy; before then even cosmetics were considered risqué.
But the former is now less 'touchy' in the West - although it's still highly touchy in more conservative cultures - and the latter - cosmetics - is not really touchy anymore anywhere in the world. So the key is to remember that 'touchiness' is a socially constructed concept.
These days in New Zealand, or most Western, Christian-based societies, anything to do with sex or mental illness would be considered touchy. So while we see a lot of tampon ads, we see far fewer contraception ads.