Well...
If u got a computer good enough, you can install a virtual machine (program called virtual box, or u can use another program called wmware), it will basically install a new OS on ur system, this OS (Operating system, like windows 7, XP etc) wont hurt ur current OS, and it will be executable from a .exe .. Look on google for a tutorial on how to instyall it etc.. ok enough about that.
Once u downloaded, installed and ran ur 'new' box, open ur CMD window (Start > run > write 'CMD' > in CMD write 'Ipconfig /release, enter, ipconfig /flushdns, enter and ipconfig /renew, enter. then write ipconfig, and check ur current IP (If u use a router u should check www.whatismyip.com to check ur IP) >This should be done in the 'new' OS u installed.< then go back to ur 'normal' OS, and check ur IP, if it is not the same, u can simply bot 100% safe on ANOTHER ACCOUNT on the 'new' OS, MAKE SURE U DONT LOGIN WITH UR MAIN ACCOUNT ON IT, u can login with ur main account on ur 'normal' OS though. even if u get caught botting on ur 'new' OS, u will have a new IP address (different one) so there are no 'traces' of ur main acc on it.
If ur IP address is the same on both OS's u should search google for some program that changes your IP for specific programs. (its not possible to use it with everything, only specific programs)
I hope you understood what i just said, if not, just PM me or wirte here and ill help you :)
/Znipo.
PS. If u do have another computer, simply bot on that one >Without logging into ur main account before.<