I knew a guy like this. Constantly told lies upon lies. Probably the weirdest guy I ever met. He also wasn't a nice person. I'm convinced he's more than just a desperate asshole; he's mentally broken and can't help himself. When I called him out on it, he try to cover it up with more obvious lies. Decided it was just better to cut him off. I once met another guy who claimed he was a special ops operative, works for the CIA, and speaks 9 different languages, but he wasn't supposed to tell you all that because it's super top secret.