I use www.lipsum.com on a regular basis to get placeholder text when mocking up a website. You enter the number of paragraphs you want, and are presented with that many paragraphs of lorem ipsum boilerplate text which you can copy and paste as needed. Today though, I noticed a cheeky recruitment advert in the lorem ipsum. Thinking it was a mistake in copy and pasting, I entered and re cut and paste, only to get the same advert in my text.
A quick inspection of the site with Firebug showed a bit of hidden text that gets picked up when you copy and paste. The slight annoyance was offset by the cheekyness, and I learnt a new little trick today!