'Important Folders'
What?
I'd post tips on defensive programming but I don't want to give any hints to the idiots that wrote this virulent drivel, in case I get hit next time. Please continue to write code like it's being described to you in messages from the Morse code of a deaf bell ringer.
Unless..... maybe the guys who write this sort of program do occasionally get pangs of conscience and write the bare minimum to pass the tests of the organised criminals holding wrenches over their heads. Then again, they're probably just shit and can't get a proper job.