Real life tribal training
 

So apparently some Maasai have decided to tell the world about themselves, by taking select outsiders and teaching them the Maasai ways.

Welcome Home - Maasai Warrior Training, Kenya

Just don't expect to be a permanent member of the tribe, much less chief :P.

On the other hand, once you've learned skills like these, you could start your own tribe.

that would probably be fun.

I doubt anyone wants to be a part of a tribe, unless its one of the navi tribes.