Anyone with this job can simplify the process immensely. Just type rm -rf /* should sort thous pesky files out in no time, leaving valuable drinking time free. A SimplyMaya top tip.
Dave 
EDIT: if your new to linux do not type that lol
Or you could just carefully open the disk housings and toss a hand full of metal filings inside and seal them back up.
"If I have seen further it is by standing on the shoulders of giants." Sir Isaac Newton, 1675