I remember my first shiny, it was a funny moment in my life too.
Okay, here's what happened, I was training my 'Wailmer' in Emerald, between the city where you have Mossdeep or something, and the town thats got the ship, anyways back to the story, after the 3rd battle, a shiny 'Wailmer' appeared, and I ran out of my room screaming that I broke my Emerald, I was only like 9 at the time, so I stopped playing, and then after a couple of months my cousins like, what did you with your Emerald, and I was like, I threw it out, cause the pokemon I found was coloured in the wrong colours! LOL!