(the theory of who took the pie)
Stan: You said you set the pie in the window sill, where it must have sat for some time. But it's sweet smell attracted the attention of somebody.
Kyle: Your husband. He wanted that pie badly, but he knew that he was not allowed to eat it yet.
Cartman: Slowly the rage built inside his mind. "Why won't she let me eat that pie? Why does she always stop me from doing what I wanna do?" His only solution became obvious. Kill her!
Stan: His plan was to use a hammer.
Cartman: Bash, bash, bash your skull in, causing instant death.
Stan: Then to make it impossible for police to identify the body, he'd use a shovel to remove your head.
Kyle: Then saw off the arms and legs.
Cartman: The torso he would dump into the lake.
Stan: The arms and legs he would dissolve with acid and lye in the bathtub.
Cartman: And then, finally, he'd be able to eat that pie.
Kyle: But before he could go through with this entire plan, he discovered that the pie had already been eaten by your dog.