It's not fun at all, Lisna! You think about it: do you really want a rampaging bunch of ancient resurrected threads that can't be stopped bursting into your house, holding you hostage, taking all the music knowledge from your brain and then discarding you as they run off to search for other vulnerable members? I know I'm glad I have a shotgun! Any thread older than a year that tries to get through MY door is gettin' both barrels!
