I was wondering about where the never-ending stream of vampires come from. Do they always come out of the ground at a cemetery? A couple of methods:
A. Vampires sire new vampires. Was the exact mechanism for this ever explained? Is it the result of a partial feed, or does the sire do something special? Does the victim appear dead, get buried, only to be reborn as a vampire to claw itself out of the grave?
B. Vampires are spontaneously created out of regular corpses due to proximity to the Hellmouth. If so, shouldn’t the regular cast members who die (of natural and unnatural causes) reappear as vampires after some time? (i.e. J. C. and J. S.)
Could Buffy have saved herself a lot of trouble by getting a job as a mortitian or undertaker? Or simply find the professionals and have the following chat: “Listen, I don’t know if you’ve noticed the extra grave holes and missing corpses, but we have a vampire problem here in Sunnydale. Could you do me a solid and put a few toothpicks through the hearts of the newly deceased before planting 'em in the ground? Thx much!”
If she can’t trust them to do that, then why not have Giles get a job at the morgue or cemetery instead of in the school library? If Giles can’t do that because he is only supposed to watch, then what about Xander?
Maybe Buffy didn’t do this because it’s all a delusion and she is still at the mental institution?