Shouldn't You Threaten to Walk Back to Detroit if You Lose?

Saw this on ESPN just now:

DETROIT (TICKER) —Travis Fisher is ready to walk.

The Detroit Lions cornerback said in a published report that he would walk from Green Bay, Wisconsin if his team notches its first win of the season on Sunday.

“If we win, man, I ain’t catching the plane back home,” Fisher told the Detroit Free Press. “I might walk. I’ll walk back. I’ll walk back to Detroit.”

What kind of incentive is that? Wouldn't you want to agree to walk back to Detroit is you lose?

Actually, might going back to Detroit by any means of transportation just be punishment enough for a loss?