He didn't loose a bet. There was a girl with the bumper sticker at one of his acoustic gigs in 1997. He saw the sticker and said, "Hey, I want that!" so she gave it to him and he put it on his guitar. I have another interview from the past couple of years where the same girl got to talk to him and told him she was the one who gave him the sticker so he thanked her for it again. Now if he was sporting a sticker that said "Dallas Is Awesome," you could assume he'd lost a bet (or hit his head ).

Becky