I dunno, adding gingerbread yous as a party favor to your funeral sounds absolutely fantastic. Every funeral I’ve been to would have been improved by gingerbread people of whoever died.
The first doesn't give me pause because it's pretty engrained into virtually all of Western society. The second... well that's sort of the whole point of Catholic communion, isn't it?
In Master and Commander, the first book in the Aubrey-Maturin series by Patrick O'Brian, a former sin eater is abused by his shipmates out of prejudice. It's an interesting subplot in an excellent book.