There is an apocryphal story* where the fancy new laser printer was having strange issues and would become unresponsive for long periods of time. The sysadmin tasked with figuring it out managed to trace it down to one user who kept sending strange print jobs that took forever and never printed anything. When asked about the jobs the programmer said that the processor in the printer was much more powerful than anything else in the company so he added a postscript target to his engineering programs so they ran simulations on the printer.

* That is, I don't remember where where I first heard it, probably a usenet post somewhere