>>According to BBC reporter Ania Lichtarowicz:
>>
>>UN, said that "Africans can eat insect for don't starve."
>>http://www.bbc.co.uk/turkish/news/story/2004/11/041109_un_insects.shtml
>>
>>I shamed my humanity. Damn!..
>
>I see no reason to be ashamed. We (humanity) have been eating all kinds of animals for centuries; it is just that we are accustomed to eat certain animals, but not others.
>
>Thus, some people that have been eating cows all their lives find it disgusting if someone eats a horse; but in theory, I don't see so much difference between the two animals.

It's to tell someone to do something that they themself think is beneath them and would never think of doing that is insulting.