There was some kind of work: to route the grid and assign network names to printers by office numbers. Worked as a "boy on call" - people are troubled - they call, complain - you go to them to the office and decide. 150 PCs and 370 Macintosh. It was all located in a 3-story building and it was lazy to run from the office to your office. The solution was found.
You send to the printer to print 500 clean sheets and wait for the call: "we've broken the printer - chases the clean sheets unstoppably!!!". Ask the office number and give the name :)