I think it's supposed to be a joke, but I think it brings up an interesting and fun question of ethics.
If you were able to clone yourself, and you took your clone to the top of a building, stripped all his clothes off and pushed him off over the edge...
Would it be?
1. murder
2. suicide
3. just another obscene clone fall
My answer? #3
I think technically, it would still be murder. I wonder if I'd be jealous of my own clone? Can someone with some experience answer this?