Once upon a time I worked at a company that had an office that processed large volumes of incoming mail. The office had about a dozen electric time stamping machines. When you passed a document under a machine, it would trigger a microswitch, and the stamper would advance the ribbon slightly and impress a stamp on the document, giving the current date and time, to the minute.
Once every minute, a stamper machine would advance to the next minute. This was a mechanical operation and gave off a solid ker-chunk sound.
Of course, the machines were all started at different times, so the minute turn-over for each machine would be different. That meant that, every five seconds or so, one of the dozen machines around the office would sound off with a ker-chunk.
cynwoody saw an opportunity for process improvement and workplace optimization. So, one evening after hours, a friend and I visited that office and careully synchronized the date stampers to all turn over at the exact top of the minute with one massive KER-CHUNK!
We made sure the date/time was synchronized to WWV. Not that it mattered. It wasn't Vital Records or anything important.
So did everyone in the office jump at the synchronized Thunk?? LOL