Only once. Before the Marlins.....****, even during the first 6 years of their existence, I, like many South Floridians who grew up with cable TV and the ubiquitous TBS channel, was a Braves fan. They were always on, if you were a kid looking to get into major league baseball, it was only natural.
This stuck with me, to the point where I attended a couple of the 1997 NLCS games at JRS, and actually rooted for the Braves, not the Marlins. I was cursing Livian Hernandez and the umps that one game. Once the Marlins won that series, sure, I went for them in the World Series against the Indians, but not with any real urgency. Didn't let go of my Braves fandom until probably around 2000, and finally became a full time Marlins fan. The 2003 season was a lot of fun....still ****es me off they didn't bother to even try to keep that team together.