Brad Sham had to double-check to make sure Michael Gallup wasn't joking.While emceeing the team's rookie luncheon last week, the voice of the Cowboys asked each of Dallas' nine draft picks if they had a pet.Several had dogs, one recently purchased a fish.And then it got to the rookie receiver with the last name Gallup."I have a horse," he said.The third-round pick went on to explain that his pet's name is Dan.