A couple of years ago I got offered what was, and I think still is, the best deal ever seen in the den: all five dragons came in for the original equity offered. We've been on twice again since, and I'm happy to answer questions on the subject.
EDIT: Photo: http://twitpic.com/btbxyz/full
EDIT 2: Thanks to everyone who asked interesting and/or challenging questions, offered support, feedback or advice. Sorry to the people who asked about poo - YKINMK.
EDIT 3: Final Edit! Promise! I'm very surprised this has reached the front page and, at risk of getting in much trouble for hijacking my own thread: I am doing some work supporting two other (UK) charities at the moment. If you have £5 you can give, share it with one of these guys. Thank-you.