If s/he can unplug the hard drive, it'd be a bit safer. Because a stray dd of=/dev/sda or the likes could still wipe out his/her hard drive... Reminds me of an

If s/he can unplug the hard drive, it'd be a bit safer. Because a stray dd of=/dev/sda or the likes could still wipe out his/her hard drive... Reminds me of an anecdote of Linus' colleague, one day Linus' brain farted while trying to connect to his ISP, and he was left with "ATDT" followed by his ISP's phone number as the first bytes on his hard drive...