Amiga Format (and barcodes)
When Marcus Dyson, later of Team 17 fame, was convinced he was about to be fired from Amiga "Sieze The Future" Format, he concocted an elaborate plan of revenge whereby his final issue's barcode would be altered using the freely-available Barcode Font font, so that every time a copy was swished with one of those electric pens at the WH Smith's checkout, the till readout would bleep, "NYER!" (Except clearly not "nyer," but you get the idea.) He wasn't fired, so the plan fell apart like a Team 17 lawsuit.
This has little to do with Amiga Format, Trenton Webb or Your Sinclair.