Dragons & Sanity Loss

[Buddha the DM]

On page 288 of Call of Cthulhu there is a listing of most, if not all, monster manual critter along with the sanity loss statistics. What I want to know is what are the sanity loss statistics for Dragons?

 

[Epametheus]

Pass: 1 point
Fail: 1d6 + 1 point per age category (so great wyrms deal 1d6+12).

 

[mythusmage]

I should think that the mere desire to face a dragon in open combat would be a sure sign of insanity.