Dennis is a psychopath Edit
Here's the official definition: "Psychopathy is a personality disorder whose hallmark is a lack of empathy".
He was willing to strangle and kill the Waitress in Mac Is a Serial Killer! Plus he shows no regard for the girls he lies to and hurts in The D.E.N.N.I.S. System.
Any other examples? --Kanamekun 07:01, January 8, 2010 (UTC)