Neither myself or my boyfriend have been injured persay, but we had a lovely experience where we went the absolute WRONG way into the woods and lost our way. We didn't even log our parking coordinates! We bushwhacked with bare arms through what felt like miles of pine trees that scratched and scraped us, while we took turns shooing the hundred or so mosquitos off of our bodies. I think I cried once too. =X I thought we were goners, lost in the woods forever!
Then we found a fence. And when we stopped on a log that was buried a little into the hillside to figure out if we were finally near the car (we'd decided to give up and log as a DNF), my boyfriend looked down and was nearly standing on TOP of the cache itself.
Needless to say, we were both perturbed and elated at the day. And Canadian mosquitos can bite through shoes! O.o!