Frankly, I wonder why Snape is at Hogwarts at all. He seems to loathe children. Well, people in general. Dumbledore, I suppose. And I wonder why he wants this particular position so much to keep applying. My god, to see Lockhart doing that job instead of him! At least Snape knows the material, even if he's not the best teacher.

and while Snape can dice the truth fine as frog's hair

I love this phrase. :)