Pet Sematary/Headscratchers

• If you live that close to a road that gets so much truck traffic, and you have small kids, wouldn't it behoove you to build a fence around your front yard?
• If you have to bury your own, then how was the bully revived if no other family members were present?
  • Because Gus clearly belonged to... whatever it is that dwelled in the Cemetery.
  • It could just be a saying, and not an actual "rule".

• So what happened to Ellie?
  • She grew up and died.
    • It's indicated in the book that she was well on her way to going completely insane.