In reply to Martin W:
Create a fake BBC news page, full of stories you've made up by copying existing articles and editing them. Throw in some real ones too.
Either change your company's DNS to point news.bbc.co.uk to this (ideal, as your colleage will then find it on their own, but you'll need to be in IT or have a mate there), or host it on an address which
looks quite like that and send a link.
Have fun.
(I did this to a colleague, some years ago; she still hasn't forgiven me for making her think civil war had broken out in Thailand just in time for the holiday she'd been boasting about for months. The look of confusion on her face when she saw that she was mentioned by name at the end of the article was the best bit...)
Post edited at 14:22