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There was a movie where a woman became suspicious that her husband was going to murder her and bury her in the basement, because he spent long hours digging in the basement.
Then one night he came to the top of the steps to the basement, and called her to come and see what he had been doing. The woman was hiding around the corner with a shovel in her hands, held above her head.
He turned the corner to look for her, and she bashed him on the head with the edge of the shovel, killing him instantly.
She then goes down to the basement expecting to find a grave ready to put him in, but instead found the new furnace he had been installing.
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Well if he was so ignorant he couldn’t just say honey I am putting i n a furnace and she was to ignorant to go ask him or go see it, well then they both got what they deserved lol