Event or quest? I got the quest for the apiary in a 0.75 game. I've only seen one of his random events total in ~50 hours of LH play, pretty sure it was in 0.51, only ~5 of those 50 hours were spent in 0.75 though so I can't really say if there's a difference.
Edit: He's the riddle guy right? I'm not very good with names.