Uh oh! Now you've gone and done it I'm afraid. Pat lets alot of things slide because he's a nice guy, but now you've insulted him deeply by comparing him to Elvis. The jerk comment meant nothing to him, in fact he chuckled and wondered if you had looked in the mirror lately.
But to be compared to Elvis, that's the last straw he said. Watch your back, you never know when Pat will leap out of the shadows and open up a king size can of whoop-ass on your poor self.
Hoo boy, I wouldn't want to be you my friend. Be afraid, be very afraid.
In some ways, Pat is worse of a jerk than elvis. But Pat is use to my rants, since I know his cousin Kenneth. Kenneth smooths things over and defuses Pat.