I decided to change my approach a little bit with regard to the use of expired Polacolor 125i, so in recent weeks instead of taking a photo, pulling the film and then leaving it to develop slowly for anything up to several hours - I have been going for a faster, heat-assisted process by sticking the exposed film under my arm until it's ready to peel.
This worked well until last week when I was on holiday, down at the beach and wearing fewer clothes than normal. It turns out that if you put old, exposed, peel apart film in your armpit to process, after a few minutes you will start to feel an uncomfortable itching feeling which rapidly turns into a nasty burning sensation!

Ouch indeed.
Any other photography-related injuries to report?