Not a "Oh by the way" story.
Was waiting at a school for their IT teacher to arrive and unlock the Server room when I heard someone complaining about the padlock on the front gate was very difficult to open. Me doing nothing while being paid borrows pencil from Admin office grabs razor knife from bag and shaves pencil lead (graphite) into lock. Insert key and restored it to brand new functionality. That was Monday. On Friday it was back to the office day and I get ripped a new one for wasting time fixing their padlock. Didn't matter it would cost $60+ to replace and I got it working while waiting for the key holder to arrive. Had 800+ PCs to look after, 41 Servers, 103 printers, 50 odd 3Com SuperStack II switches that like to arrive DOA or died within 6 months of installation and about 120 laptops spread over 16 locations with 3.5 hours per site per fortnight. Bloody ridiculous so I left a few months later.