A few thoughts about Quirrel and mistakes

[dragondor1709 at yahoo.com]

Referring a bit to some other comments if I may. 
1)I only saw this movie once so far. Prof. Quirrel taught DADA,but 
was there an actual class?  

2) I also believe that I read about Prof. Flitwick or Flitiwick,being 
obsessed with Goblin History. No mention of that in his first class.
(I may be mixing up books here)

3) Re the secret room with the flying keys and Quirrel.
Referring to  something elsewhere about a mistake with the damage 
done by Harry and none by Quirrel and asking whether the room 
restored itself....    
Wouldn't having Voldemort on his back,be enough to get him through 
without all the destruction caused by HRH?
Certainly he had the skills.Chris