"The bored Swede" joke

A swedish man was bored. He was bored with his work, bored with his life in
general. He felt as there was nothing waiting for him in this life...
...until one day, in the breakfast table, he was reading the morning paper,
when he saw an article, which would change his life. It said: "
...Scientist's had found out, that somewhere in Africa, one could still
find tribes of genuine cavemen, untouched by civilization. Only thing
needed was to find the correct cave and shout "Wohoo!!" and the tribe would
answer to this call."
"This is it!" the swede thought. "This is what I've been waiting for! I'll
sell everything I own, go to Africa, find these cavemen, and become rich
and famous!"
And so he did. He sells everything, moves to Africa and starts looking for
the tribe. But cave after cave after cave, no answer. No cavemen.
Until one day, yet another cave, and another yell: "Juhuuu!!" And then he
heard it! " WWOOOOUU WOOOOOO !!! "
"H