My first Shiny was a Horsea, back in Sapphire. Of course, being the young child that I was, I had no idea why the Horsea was a different color. I forgot what Route it was but I was surfing around looking for the Latias without the Master Ball. As I captured it, I trained this dark blue Horsea into a Seadra, and traded it to a friend to a Kingdra. As I got it back to see it Pink, with my little boy mind, I couldn't help but reject it, and keep it in my box. Poor Kingdra, maybe next time you'll get a spotlight.