So this was a bit of fun. Where I work all the doors are locked and can only be opened by security badges. One in particular is relatively awful, like nails on a chalk board. I told one of my coworkers I would record it and turn it into something better. So here it is time stretched by 30x and pitched down half an octave with minimal sounds over laying the original source so that its essence is retained. The original sound is at the beginning.