It's like a man who can fish to feed himself and a man who steals fish as survival. The man who can fish can make his way anywhere in the world were there's fish at his hearts desire. The man that steals must always rely on others and their hearts desires. God forbid he gets caught.

Jokes are the fish
Dave is the fisher
Mencia the theif
Comedy/Entertainment the world/audience/clubs etc.
get it?