I don't de-rail them. I allow them to flourish in an environment free from whatever crappy reason you started them for.
And I'm not going to sit here and make idle threats and try to act tough, but be warned Stealth, I settle my scores. No matter how pointless or troublesome it may be to do so. And while I'm hardly willing to go spend hundreds of pounds tracking you down, flying out there and kicking your ass; In 10 years from now, as I sit in my ivory tower rolling around in goddamn 500 Euros notes, if the opportunity should arise whereby I could buy whichever fast-food chain you work for, the bank you mortgaged your card-board box with and the educational institution your deformed, malnourished children attend, I would happily bankrupt my vast, semi-legal business empire to do so just so I could see you and your differently-abled children die out on the streets.