A friend pointed out last night that the article on bestiality (that makes me feel unpleasant) was Singer's response to a book review request - he did a review, not the research.
The quote Geoff has made is *exactly* how the supermarket works. Apart from sellers actively paying the supermarket to promote their products or making deals with the supermarket chain so that each store is given allocations of particular stock; it is consumer demand that determines the amount of a particular line that is ranged in each store. I listened to the vegie BK monologue yesterday and it adds to the argument of supporting vegan options even in some of the horror stores like Hungry Jack's and MacDonalds. I still baulk at the idea of eating anything from Macca's tho' and only the argument that I am changing the demand would convince me.