(I changed the the first man's identity to "down & out" so as not to offend a number of folks. Hope it still works).
A down & out man and Czechoslovakian went hunting one weekend when
they were attacked by a bear before they could get a shot fired. The
down & out man ran to get help from the ranger while the bear ate the Czech.
When the ranger and the down & out man returned to the site they found the
Czech to have been completely eaten and two bears roaming around. The
ranger asked the down & out man "Which bear ate the Czech?" The down & out man
pointed to the male bear. The ranger took out his gun and shot the bear.
Then he quickly cut open the bear hoping to find the Czech still alive.
However, the male bear was empty. The ranger stepped backward and
laughed. "I should have known," he muttered to himself, "You can't trust
a down & out man that says the Czech is in the male!"