Talk:Off With Its Head/@comment-69.92.33.62-20131009081021/@comment-3498155-20140321154506

Doesn't seem you can fail it - as mentioned, the ox is impervious to dying and will slowly regen and get back up after being "killed". I presume the accompanying NPCs can die though, albeit they should respawn after 7 game days (although this does beg the question where they respawn).