Killer vegan and Vampire, conflicting skills?

[CrateEyeHowl]

I tried to use "Drinker of the Dead" while having both Vampire and Killer vegan skills, (I thought it would be a good synergy since Vampires don't eat any kind of food items) and my health went to -10, my mouse dissappeared, and the game froze. Obviously the freezing isn't an intended feature, but what happened?

EDIT: Just realized it might be relevant that I was using "Drinker of the Dead" on Bee Arthur. Might be related to unique characters or something.

[House of Eats, Shoots and Leaves]

That's weird.
Normally, using Drinker of the Dead as a vegan is just prevented with a message like the one you get when eating food as a vampire.
Even apart from that, Vegan actually works <i>better</i> if you're allowed to eat - don't underestimate the tofu/veggie drops. Just grind+lutefisk any "impure" food (unless you want to use it for crusts).
(Vampirism, on the other hand, works pretty well with other regen skills like Armsmaster, Shieldbearer or Communist because Drinker of the Dead scales off health regen, oddly enough.)

[Kaidelong]

@Octagon: I've never encountered this prevention when trying to use Drinker of the Dead.

@OP: The reason why is because as of recent versions of Dungeons of Dredmor, Drinker of the Dead scales to health regeneration, a stat. Your vegan debuffs were sapping that to the point it rolled back into the negatives. Killer Vegans have slightly higher health regen when not debuffed, so you should actually be healed *more* most of the time. So try to remember not to hurt cute animals or eat non-vegan food when playing a Vegan Vampire, just eat the corpses of the cute animals after they die "accidentally" and you're fine.

[Austellus]

It was an accident! They walked in front of my spell! Then walked in front of it another half dozen times after they kept resisting it!

Side-note: Killer Vegans extra health regen can't really be described as "slight", they get 5 HP regen. If you're on normal difficulty that's nearly enough to regen 1 per step from the one skill alone.

[CrateEyeHowl]

@Kaidelong: Thanks, I did have the debuff active, that's got to be it.

[House of Eats, Shoots and Leaves]

Oh sorry. I think drinking blood as a vegan just debuffs you, then... I never actually tried the combination myself, only read about it.

[Haldurson]

Neither Killer Vegan nor Vampire alone are beginner-friendly skills Combining the two is something I don't recommend unless you really know what your doing, or don't mind dying multiple times before you get a handle on it.

Personally, I've had very good experiences with each without the other, but have never tried them together. I'm actually more of a fan of Vampirism, simply because I've had lots of fun with it (whereas I have a tendency to make too many mistakes with Veganism, when I 'forget' and become too careless). I think a return to Dredmor might be in order.