With my student hat on it'd be interesting to know whether those universities that have LINKS units who cover the main trouble spots for first aid result in less wastage of ambulance time. With my disabled hat on, I can only agree with batsgirl. I had a nasty D&V bug for no apparent reason, which sets my physical condition off like nobody's business (so lots of falling/not able to sit up etc). Scared some of my flat mates who wanted to call a doc, and it was very hard to make them understand that there was no point (as i. no doc is going to do anything for D&V 4 hours in, and ii. I had no wish to be carted off to hospital and filled with muscle relaxants).