I know that feeling. First random wild shiny I saw was a gastly in crystal. I was low on pokeballs and it just wouldn't stay in one. I was forced to kill it. Ran into my first random shiny, since a cacnea in ruby, yesterday. A wingul in a horde that appeared while EV training my MM'd Gastly.
Anyway, congrats on the shiny.
3DS FC: 1805-2186-8045 Better goomy yourself before you doomy yourself.
Your first Shiny, huh? Congratulations! It's an awesome feeling, isn't it? I know I'll never forget catching my first Shiny- mine was a Zigzagoon in Ruby, years and years ago. Still have him, in fact, he's now one of three Shiny Linoone in my PC.