Why Snape doesn't get DADA job

[gopotter2004]

No: HPFGUIDX 108289

Adi Wrote:
He knows when Snape applied that one day Harry will be coming to 
> this school and DADA will be the most necessary and urgent skill the 
> school can give him. And knowing Snape's animosity for James and 
> others, he thinks that Snape might be obnoxious with Harry and might 
> prove to be a very bad teacher to Harry and worse scuttle Harry's 
> interest in the subject.

See, I've always just felt that Snape is GOOD at potions. Because he
is: he's one of the few wizards who can brew the werewolf potion. He
can whip up Veristatim (which I'm assuming isn't EASY, since that
would be disasterous). He can bottle fame, brew glory, even put a
stopper on death.

On the other hand, it would be very stupid for him to teach his best
abilities in DADA, as it would get him killed. (I'm assuming that
Malfoy Jr does take DADA and would report back to Sr about
occlumancy-- very intriguing that Snape is so good at this, being a
Death Eater?)

Becky, who thinks that while DD often has secret reasons for
everything, doesn't think he was worried about Harry this time
(ahem... for once.)