Not exactly sure which gen I was playing in, but boy howdy did I waste a lot of time, I believe it was Gen 4, Pearl. x.x
Here's what happened:
After beating the game, I wanted to make the most awesome team I could. So I bred the best mons I could think of (this of course had not taken IVs and Natures into consideration, or type coverage for that matter), and taught them all the best covering moves I could (A whole team of nothing but attacks, no status moves or anything, and only ONE egg moves). Then I went throught the elite four about 50 or so times to get enough money to buy 51 stat boosting items for each Pokemon, because I thought their stat growth was based on some magical formula (I had no idea...) and if I gave them as many vitamins as I could, they would be the most powerful Pokemon ever!
My team had Ursaring, Zangoose (pre-Toxic Boost...), Scissor (I actually bred Silver Wind onto him... and taught him Metal Claw, Swords Dance, and Some other special move), Absol, Aggron, and Lucario (Mixed Lucario...).
I had no idea what I was doing. I still have them, and occasionally look at them as a reminder of my humble first steps into competitive Pokemon.