A Mexian woodpecker and a Canadian woodpecker were in Mexico arguing about which place had the toughest trees. The Mexican woodpecker claimed Mexico had a tree that no woodpecker could peck.

The Canadian woodpecker accepted the challenge and promptly pecked a hole in a tree with no problem. the Mexican was amazed.

The Canadian woodpecker then challenged the Mexian woodpecker to peck a tree in Canada that was impeckable (a term frenquently used by woodpeckers)

The Mexican woodpecker expressed confidence that he could do it and excepted the challenge.

The two flew to Canada where the Mexican woodpecker successfully pecked the so called "impeckable" tree with out as much as raising a sweat.

Both woodpeckers were now terribly confused. How is it that the Canadian woodpecker was able to peck the Mexican tree, and the Mexican woodpecker was able to peck the Canadian tree, yet neither was able to peck a tree in there own country.?

After  much woodpecker pondering, they both came to the same conclusion.

Apparently 

"your pecker gets harder when your away from home"