MICHEL: My neighbor had this dog, a frisky little scamp that used to love to yap to his friends all night long. It was so cute. Then one day he disappeared. I told the police what I knew, but sadly the adorable little chatterbox was never found. It was tragic.
LORELAI: You got rid of a dog? …
MICHEL: I will gladly show you the transcript from the lawyer and the results of the lie detector test.
LORELAI: You’re heinous.
MICHEL: And very well rested.
Compare with Richard’s retort that at least he and Emily will be well rested, after Lorelai says they are both going to hell for snapping up a dead man’s property so quickly.
Michel, the (unproven) dog killer! It is actually possible to beat a lie detector test, although quite difficult. Michel is obviously a very cool customer. It’s much easier to fail one while being innocent, due to anxiety. These false positives are why evidence from one is not admissible in a court of law in the US.