Diane, to be honest, I don't think I've ever been in a situation where a camel's rectum might bother me but I take your point.
As I've mentioned before, the avatar is of my hero, Charles de Rudio. It's probable that one of the moderators of this site tampered with the image, thus creating the illusion you mention.
Surely Mince wouldn't tamper with a camel's rectum?