I still remember when I started playing around with computers, 40 years ago in a Tandy store on TRS-80, you were told something like "it doesn't matter what you

I still remember when I started playing around with computers, 40 years ago in a Tandy store on TRS-80, you were told something like "it doesn't matter what you do on the computer, you can't hurt it or damage anything". Now everyday when I work (on networking and security for large enterprises) I constantly am thinking about how I have to really make sure the process I am about to execute isn't going to break something or disrupt someone's business operation. Rarely do I have to contemplate that what I get wrong might kill someone though!