Spend hours and hours trying to remove a masterball from a little stupid pokémon (i can't remember which) because i though master balls were reusable. Since then i never used master balls anymore, i must have 15-20 of them (by passing them to another cartridge and resetting the other game) My friends are rather stupid also, and i tricked a guy i met on a trip into trading a shiny for a attack-perfect EV and good nature i-dont-remember-which scizor (lol, i have lots of them) infected with the pokérus saying it was a really good investment and he may not have the chance to get pokérus again. Welp, i found at least four when doing the magnemite coil in B/W. Never saw that guy anymore. Also some of my other friends would have missed some shinies and killed them if i wasn't around when they were playing.