Other than T-Plush and Milledge, I can't think of any former Nats I would actually boo. I always politely applaud when Livo, Rausch, and any of our other alums take the field (don't get me wrong, I also applaud loudly when they get lit up). I might wear a "phuck filly" shirt to games, but I can't really see taking the hate to a long-suffering former Nat.