Why it is important not to taunt a Bat

Once upon a time in the land behind the mountains there was a lush forest.
The forest was home to three fairies which spent their life carelessly 
playing all day long with their friends the mice ( who despite all 
rumors did not have a hormonal problem at all) and their happy tree friends.
One day one of the fairies discovered a bat hanging upside down i a 
tree where it was resting for the day.
She gathered her two winged friends and after buzzing around the tree 
for a bit they decided to play a trick on the bat.
They went to Olli the elephant, who was strong but not very smart, and 
said in a sugar-sweet voice:
" Olli our poor cat is stuck in a tree, can you get it out for us?"
It never occurred to him that a cat would be much larger than the 
pixies and that they should be able to fly into the tree to get 
anything themselves.
" No problem" the green elephant trumpeted and stomped behind them to 
the tree the bat was sleeping in.
Olli had always been a fan of permanent solutions, so without any 
hesitation he rammed his big head into the tree-trunk.
The tree toppled over with a high-pitched scream from the bat (which 
no-one else could hear) and made a satisfying thump when it landed on 
the forest floor (which everyone heard).
The mangled bat crawled out from the fallen tree to the suppressed 
giggles of the mischievous fairies and under the puzzled stare of a big 
elephant.
" I thought you said cat " said Olli
" Oh well I often get letters wrong" Somehow he managed to shrug and 
went off after a job well done.

The confused bat flew off and thought to itself "these damn pixies will 
pay for what they have done to me"
And so the bat flew out to the swamps where the tower of the evil 
wizard was. It flew to the gates where it was stopped by guard which 
seemed to float in the middle of the air.
" What do you want?" it said with a rusty voice .
" I request an audience with your master" answered the bat . "
" the mighty wizard has  not time to waste on the likes of you!"
" Oh then he wont be interested in knowing where he can find a unicorn 
will he?" The bat said and stated to leave.
"Halt" rasped the  floating knight, "You can proceed up the tower, but 
do not stray from the path.
Fluttery as a bat is it is very difficult for it to fly straight and 
despite the warning it got at the gate it strayed off the stairs and 
flapped along a corridor with prison cells lining the wall. It got a 
bit too close to one of them and was barely missed by a strange 
creature half wolf half rockstar, which tied to bite the bats head off. 
The creature let off a horrible howl (the bat wasn't much of a music 
lover) and starting smashing furniture.
Startled by this experience the bat flew straight out of this hell and 
back to the stairs and it did not once stray off again.

When it reached the top of the tower it saw the wizard bent over a 
table looking at strange playing cards.
When he heard the bat he looked up and stared at the animal for a while 
before he spoke: " So you know how to find a unicorn do you?"
" Yes, I heard the fairies in the wood talk about it" lied the bat
" If you capture them they can lead you to it" it added slyly
" A unicorn horn is indeed the last ingredient I need for a potion"  
the wizard  tapped a piece of parchment marked "Uniagra: as he spoke.
" Are you sure they talked about a unicorn?"
" I have very good ears"  the bat remarked nervously
" indeed"  said the wizard "well the critters in the woods have been 
annoying me for a while anyway, and the forest really spoils the view 
from my bedroom window."

The wizard donned his favorite hockey-mask and went to a pentagram. He 
tapped all his swamps and  started mumbling strange words. After a 
while and it was as if the center of circle became darker and darker. 
the darkness began swirling and something not quite a face formed and 
spoke to the wizard.
" NOW WHAT?"
The Wizard raised his voice and said: "By the compact that binds you I 
order you to destroy the forest by the mountains and drive out all 
living things in it!"
" WHAT IS THE MAGIC WORD?"
" Please" the wizard said slightly embarrassed
"ALRIGHT THEN" spoke the spirit and dark clouds assembled over the 
tower. It was as if the clouds sucked up all light and the world under 
them was completely dark. With one exception: As it drifted towards the 
forest  mighty lightning would strike down and where it hit the ground 
it would tremble and rock. The earth shook avalanches came down the 
mountains and one old dormant volcano erupted spewing lava and hobbits 
all over the place.

The forest was slowly devoured by the darkness driving all that could 
move in front of it. The three fairies fled in panic blind to the 
dangers in front of them. One ended in the web of a giant spider and 
was promptly eaten. The other two got out of the woods in the far side 
only to be caught by magical snares set by the wizard.
" Where is the unicorn?" he boomed as he stood over them.
But the fairies did not know anything about a unicorn and could not 
answer the wizards question to his satisfaction.
" Well maybe I can make you two a bit more cooperative" the wizard said 
and pointed his staff at them.
Slowly and painfully they began to change, their skin turned to leather 
and scales, their wings shriveled, the antennas replaced with horns and 
most horrible of all they forgot what they had ever been and their 
singular carefree and happy mind was replaced by a singular carefree 
and careless mindset.
" Now go and find me a Unicorn" The wizard said after they had changed.
"YESSSCH MASSSSCHTER" They said as their brainwashed minds offered no 
resistance (and they also had developed a terrible lisp)
and they began searching the scorched forest.

And so the following week the wizard invited all of his friends 
(especially that hot sorceress he fancied) to a party. Here he served 
unicorn roast slowly cooked over a fireball, for there had indeed been 
an unicorn in the forest. In fact it had been the last unicorn of this 
realm and now it was gone. Where the forest had been  only a few hollow 
trunks stood in the badlands and all just because the fairies had 
played one trick to many.  An the bat? The bat lived happily ever after 
with his two new imp friends, well at least happily ever after until 
the sorcerer needed batwings as a ingredient.