I loved Dave Winfield as a kid and collected his cards. I went through a phase of writing to some of the players I liked, and sent a card along to see if they'd sign it and send it back. All of the cards got returned, but they were rarely signed, and they'd usually come with a form letter essentially saying, "thanks for writing, but I'm too busy to sign this". Winfield signed it though...no letter, but it still kicked ass.