When you know you are not dealing with a mopar person

I work with a guy everytime we start talking about cars he always tells us about his 1969 440 hemi duster!! I swear I'm not making it up!! He is a pathological liar I can't roll my eyes far enough in the back of my head to justify the stupidity that comes out of his mouth sometimes!

Yup. I know the type. No matter how much proof you show him, he'll never back down. He'll insist it was a one of one never made again factory experimental blah blah blah........lol