I honestly don't ever boo at anybody other than some of the ref's calls. But I can understand why people feel the need to. Some folks don't remember that he signed a "life time" contract with the Packers. When he did, he said he wouldn't ever play for another team. He said he would retire before that ever happened. Well, I guess he was partly right. He engineered a "retirement", then went and played for another team. I'm not surprised people are upset. When you tell a whole fan base that you are so loyal to them that you will quit rather than play against their team, then welch on your promise, it ticks people off. You promise loyalty then show the ultimate form of disloyalty by going to a hated rival. That's a recipe to get people to hate you.