Norbie: Indeed, I would just leave it alone...
elmo mole: Haven't seen you around for ages, still I'll leave the message for now, pepsi can just be ignored.
metalhead: If you catch the diseases of vampirism, you can stop it from becoming permanent by using a cure disease potion before 3 nights have passed. If you don't do this, then you have to go on a big quest, started by talking to the guy in the Arcane University lobby. I forget his name.