Unfortunately (for him) Mount Zoom ran over the Witch-King.

Fortunately, he suddenly aquired the ability to regenerate.

Unfortunately he regenerated as Deagol and
was immediately strangled by Gollum.

Fortunately Sauron the once great Necromancer revived the witch king.

Unfortunately, when revived, the witch-king showed a strange liking for socks. In particular, Saruman's socks. ;)

Fortunately, the Witch-King was very good
at making nazgul sock puppets.

Unfortunately, the plays he put on with said puppets were rather gruesome.

Fortunately, his audience was filled with Orcs who loved gruesome stuff.

Unfortunately you really can't expect gruesome-loving orcs to behave; a few minutes after the play, they all got into riot, and reduced the Witch-King to tears.

Fortunately, the Witch-King had his fell beast to cheer him up.

Unfortunately the fell beast was a noted Middle-earth thespian,
said to have coined the phrase "Dying is easy, comedy is hard"
while doing a remake of "A Funny Thing Happened on the Way
to Minas Tirith."

Fortunately, Tom Bombadil came, singing, to see what was going on.

Unfortunately, the Fell Beast hated Tom's singing
and told him "You're Fired!"

Fortunately, Tom's ego was strong enough to withstand such words.

Unfortunately, Tom's singing killed the fell beast.

Fortunately, the witch-king could make another out of play-dough.

Unfortunately, then it was just a play-dough fell beast and not a real one.

Fortunately, the play-dough was pretty pink, which the witch-king liked.

unfortunately the pink was fairly obnoxious neon pink, which enraged the rioting orcs who then tore it aprat and they all used the chunks they tore away to make various things, one or for example created a spleen.

Fortunately, it was a very attractive spleen.

Unfortunately, attractive play dough spleens are the secret
ingredient to movie Saruman's orcs so he made lots of new Uruk-Hai.

Fortunately, a bucket of bile-like material ruined the play dough spleens.

Unfortunately, dwarves (again!) delved too deep, this
time in a mine in Erebor, and uncovered a rich vein of
play dough spleen.

Fortunately, the tunnel closed up.

Unfortunately, some dwarves were also closed in.

Fortunately, the play dough spleen released a chemical which killed the dwarves and made sure that no-one could ever get to it alive.

Unfortunately the relatives of the trapped Dwarves started to protest.

Fortunately Aule sided with them and took their
case to Manwe.

Unfortunately, Manwe was shown by Ulmo that it was better that the play dough spleen was left in peace or it would destroy all of Arda.

Fortunately, Manwe found a way to dispose of the
play dough, sending it to Melkor in the outer void.

Unfortunately, the play dough spleens were still trapped in the tunnel with the dead Dwarves

Fortunately, the tunnel was also sent into the void to Melkor.

Unfortunately the tunnel with dead Dwarves and spleen filled Melkor with escape ideas.

Fortunately, the weren't very good escape ideas.

Unfortunately, Sauron smuggled in some really good
escape ideas in a cake he baked.

Unfortunately the cake smelled so good, the warden of the Gate of Night confiscated it.

Fortunately (for the warden) the cake also tasted nice.

Unfortunately, since the cake was sent by Sauron it was tainted and the warden became sick.

Fortunately Este gave the warden some
medicine for his tummy and he got better.

Unfortunately, this meant that there was no-one to fill in for the warden while he was sick.