The "guy" in question is revealed to have a very active online habit, including posting to Television Without Pity.com. In real life, Gregory Thomas Garcia
(creator of _"My Name Is Earl" (2005)_) had been posting in the forums at TWoP as this character months before the show aired, and in fact posted his line the night before the episode aired. The following day Joy and Crabman made posts under his user-name WhoJackie. See more
When Earl removes the door knob at the beginning, he pulls out the part that opens the door, so he could have just stuck knob back in to open the door. See more
[after Earl has insisted that he wants a traditional funeral
A Box, you want a box. You want the Number Three Package, with the Blue suit, the Hillview Plad, Pachelbel's Canon in D on Organ, with the Stargazer Lillies, and a card with the Twenty-Third slam on it.
Not the Cannon that Sounds a little Dangerous. Should I just go to Nathanville?
No, I'll do it. I need the money, I get sued a lot.