The office I work in runs on Macs. Some g5s, some laptops. All shiny, white and pretty smoothly functioning really.
There is one PC. A yellowing beige box squatting under my desk, with ADVENT on the front in a wanker font. We use it to print out stickers for posting - like a franking machine - because the royal mail SmartStamp software is not available for Macs, for reasons best know unto themselves.
Using it is enough to ruin my day. The interface leaves me actually open mouthed that something so preposterously shit could be used by so many people. After using OSX, using Windows is like being made to crawl everywhere when you're used to running.