How would you feel if you had one of them in your house in the walls destroying everything, and it would also take more then normal rodent killers.(which is where my rodent zapper from 5th grade invention fair comes in, not realy) You would need cia rodent killers. looooool.
This is my step by step guide to dealing with a Pokemon rodent infestation:
1) Grow a moustache (Non-optional!!) 2) Catch one of the Pokemon rodents. 3) Train him for a day or two. 4) Laugh like a madman and stroke your moustache as you watch him fight his former friends. 5) ??? 6) Profit.
IMogwai, your guide is almost perfect. The only problem i have is that i'm female.
& Before you ask - of course i don't mind growing a moustache, that's absurd. I will have difficulty laughing like a madman. May i laugh like a mad woman?
As for the actual question - i'd train them, keep them.
Here's what I'll do (or Death guide on how to get ride of a Pokemon rodents infestation for non-mustachioed/girly voiced people): 1.Create cheese room. 2.Lure rodents into the cheese room. 3.Throw grenade and then run as fast as you can. 4.BOOM!!! 5.Laugh evilly.