A black, a white and a yellow engaged in a competition...

of who had the strongest resistance against bed smell of animals and their shits.

So each went inside a cage full of dirty pigs with their shits.

A white went in first and in just 10 seconds he gave up and came out.

A yellow followed, one hour passed and the judges thought this person was very strong, only to find that the yellow had already fainted inside the cage long ago.

Finally, it's the black's turn, so he went in, and in just 10 seconds... the pigs came out.

The judges couldn't decide who's the real winner.

 

EDIT:
C'mon it's not that racist, you can change yellow/black/white according to your preference.