Last June, I bought my DS and Soul Silver, it was really the first game that I had since Ruby. I did buy White before Soul Silver, actually, I bought it before I had a DS and played through it on my friend's DS, but I didn't really care for it much. When I had Ruby, I didn't even know that shiny Pokemon even existed, I did when I got Soul Silver, though. Two or three days after I got the game, I was thinking about how awesome it would be to run into a shiny Pokemon, as I had never caught one before (except for Gyarados, which doesn't count. And no, when I played the original Silver version, I didn't know it was a shiny, just thought it was a special Pokemon.) About 10 or 15 minutes after I started thinking about catching a shiny Pokemon, I encountered a Ratatta.. and it shone. Didn't take any chances of knocking it out, just threw a Pokeball at it and captured it without any issues (it was a pretty low level.) That will probably be the coolest/weirdest moment I will ever have in Pokemon, just because I was thinking so intensely on how cool it would be to catch a shiny Pokemon and it actually happened.