Okay, is this just a coincidence? My brother was playing Pearl for the first time. Around the Grassy area in between Jubilife and Rustburo (before beating the first Gym leader he did this) he cuaght a shiny abra. He wasn't happy with the game and started it over. In the same area in his next game, he found a shiny Krickitot.
As stated in every Pokemon site on the internet, there's a 1 in 8192 chance of finding a shiny. Seeing as this is a completely random results equation, it is a creepy, but otherwise, not intentional coincidence.