Red Gyarados is the closest I've gotten to even seeing a non-standard color in the wild. Conversely, I've gotten the Pokérus four or five times despite it supposedly being only a third as likely as finding a shiny.
Gamertag: KarmikCykle Get your serious business out of my internet!
Not counting Gyarados, it was a shiny Tentacool in either Silver or Crystal.
This was before I knew there were other shinies besides Gyarados so I thought my game was going screwy. Luckily I decided to catch it anyways. Afterwards, I looked up on the internet about it and found out shinies existed for all of the other Pokemon as well
Female Machoke... -_- I actually ended up getting rid of it.
Second one was a Ponyta, and I was so stoaked but I didn't have a lot of pokeballs and all of my pokemon were at too high of a level to not knock it out in one hit. I was devistated when it broke out of all my attemps to catch it. That's why I make sure to always fave pleny of quick, dusk, timer and level balls with me at all time.