I'm mildly curious how many people reacted to "I roll to see if I believe you" with strong disapproval before reading the rest of the panel, because no, RPGs do not work that way with player characters.
At least, none I'm familiar with. Enough exist that it's entirely possible players might have to roll for disbelief in one of them, but that seems pretty contrary to the whole role playing aspect of the game.
Epic Backstory Time
I really didn't want to give the impression that everyone else was just twiddling their thumbs while waiting for Ellen and Rich to return, so Larry the Bard gets a bit of backstory.