Why Human/Animal Hybrids are a Bad Idea

I'm usually quite the proponent of science. I eagerly await my robot slave and my car that drives itself. A recent post by a friend of mine, however, has made me realize that there's one place science shouldn't take us: human/animal hybrids.

Some of you out there may be saying "Why not? That would be awesome!" Allow me to illustrate. What you are thinking of, and hoping for, is this:
What you would end up with, however, is this:
I think I'll leave that one in the realm of fantasy, thank you very much.

(By the way, blame Google Image Search for this one.)