zombie dream

So I had one of many zombie dreams, family members I haven't seen in years and I were locked in an old house, and of course someone felt bad for grandma and let her in (SHE'S BEEN DEAD FOR 2 YRS)....SO...Here she is walking around biting people and they are letting her because she is so weak and not able to penetrate the skin, then I realized. Hey! why don't they just take out people's teeth when they pass on?... It would help some. or just have mandatory cremation.... I know there are already re-animator's running around but for future use could be helpful... Any way just a thought.