Actually I have a really funny story about that. So back when I was a kid on one of the hand helds, I think it was fire red, I was going through diglett cave and all the sudden a shiny dugtrio came up. I screamed for my brothers to come look and I was so stoked I was the first to find one out of us. I didn't end up catching it and it got away and I was super bummed that I didn't get it. A few steps later and I actually got a second shiny in a row in the form of a diglett and I actually ended up catching it! To date it's one of my favorite pokemon stories to tell just because of the sheer luck and witnesses I have for the story haha