I haven't read this whole thread, but Uecker sings every year and always says: "I'll root root root for the Brewers, you do the same for the Cubs" or some form of that. He's been doing it for years, and every year when he says Brewers, people start to boo. It's not new, and I don't think it's that big of a deal. They are our division rivals and it's a tight race. I think I'd be more concerned with the fans if they didn't boo that.