" [insert character name] is from this town,right? So why did she leave again?"
Upon, character [returning home, the dm asks " Your character had a fiancee, right, and, according to your background, prior to setting out on your personal quest for revenge, you didn't return to let her know you were alive, correct? And, over the past year, you never once said that you were sending a message home to inform her that you were alive and why you left, am I right? In fact, you never once attempted to contact anyone including the king to whom you have sworn allegiance, prior to setting off, did you?"
"What was the symbol your character saw in the premonition of his death? The person before your character has it on his tabard"
"What makes you assume this is a standard [insert monster]?"
"You want to [insert character name] to do what?"