I've been hoping that there is.. but I haven't found one yet.. Oh do I remember the days of bringing the adoring fan to dive rock and punching him off multiple times through reloading saves. Anyway, I found the book, The Lusty Argonian Maid. I'm pretty sure that was in Oblivion and Morrowind maybe, it could be an easter egg. So are there any dumb NPC's? You know, besides Mjoll the Lioness.. That idiot wont shut up for 5 seconds about her mother, father or Skyrim's geography in general.
You can push your companions from high places. They won't die unless someone perform a coup the grace on them or you kill them directly.
The Lusty Argonian Maid does appear in Morrowind. Indeed you meet the writer in that game. If you wan't to end the MQ you only can kiss him or kill him, your choice. Many people see him like a great guy, while others hate him with passion.