I re-did this joke here, I heard a lot of comments saying it needs work so here it is:

There are 2 cowboys and an Indian on the coastline, the first cowboy tells the group to go look for scallops for dinner, an hour later the first cowboy comes back with a sack full of scallops, 30 minutes later the second cowboy comes back with a sack full of scallops, after a couple hours there is no sign of the Indian so they decide to eat without him, when they are about half way finished, they see the Indian riding in, grabbing onto a bloody, brown tuft of hair...