1. Using MB on Kyogre
2. Testing MB on Tentacool
3. Missing MB
Sure alot of MB mistakes...
4. Kicking my little brother around after my pirated Sapphire had deleted my save. Quote: "Stupid! You destroyed my save! I had a Sceptile!". I was like 8 years old... Yes, most of all I was sad of the Sceptile.
This mistake isn't really mine, but when my friend was playing LeafGreen and I was sitting next to him, doing my nerdy stuff on a computer, I started talking something about shiny pokemon. He said he has seen lots funny colored pokemon but had just killed them. He hasn't found any after that. BTW, he was 12.