A wealthy man decided to go on a safari in Africa. 
He took his faithful Collie along for company. 
One day the dog starts chasing butterflies and
before long he discovers that he is lost. 
So, wandering about he notices a tiger heading rapidly in his direction with the obvious intention of having lunch.
  The Collie thinks, "Boy, I'm in deep doo doo now." Then he noticed some
bones on the ground close by, and immediately settles down to chew on the
bones with his back to the approaching cat.
  Just as the tiger is about to leap, the Collie exclaims loudly, "Man,
that was one delicious tiger.  I wonder if there are any more around here?"
  Hearing this the tiger halts his attack in mid stride, as a look of
terror comes over him, and slinks away into the trees.
  "Whew," says the tiger.  "That was close.  That Collie nearly had me."
  Meanwhile, a monkey who had been watching the whole scene from a nearby
tree, figures he can put this knowledge to good use and trade it for
protection from the tiger.  So, off he goes.  But the Collie saw him
heading after the tiger with great speed, and figured that something must
be up.  The monkey soon catches up with the tiger, spills the beans and
strikes a deal for himself with the tiger.
  The tiger is furious at being made a fool of and says, "Here monkey,
hop on my back and see what's going to happen
to that conniving canine."
  Now the Collie sees the tiger coming with the monkey on his back, and thinks,
" What am I going to do now?" 
But instead of running, the dog sits down with his back
to his attackers pretending he hasn't seen them yet. 
And just when they get close enough to hear,
the Collie says, "Where's that monkey.  I just can never trust him. 
I sent him off half an hour ago to
bring me another tiger, and he's still not back!!"