OK, that's an interesting case that I didn't know about, but it just shows how blurred the lines between genes, virus and transposons are. This is a virus that you can pass on to your children, but not others around you, correct? It's not what I was considering when taking about viruses, because of the infectious element. You have shifted my mental boundary about what is considered a virus.

It looks like think something that is part of your genome is part of "you" - I won't argue that it isn't, it certainly is from one point of view. I don't plan to have children, so I have a different perspective on things.