After a fall in a pretty remote area, I activated my emergency beacon and I knew my lung was collapsing. I snapped one of my hollow tent poles and jabbed myself in the chest cavity so I wouldn't suffocate (it was going to take them 30+ mins to get to me). A lot of after-care on that one, stabbing yourself with a dirty tent pole doesn't make for nice infections.

Have had to give myself stomach and intramuscular injections for various medical reasons too.

Have had to remove foreign metal form my leg, clean and stitch up the wound which was relatively shallow but long. Another accident, car crash in a remote area.

Always have a first aid kit handy! And probably don't hang out with me too much away from civilisation..

30 minutes is pretty good response time! The one occasion when I was involved in a backcountry emergency it took 8 hours for the Air Force to arrive with helicopters.