Luckily, nothing major enough to cause serious injury, but I've taken a handful of shocks and burns over the years. some of the more notable ones include:
-When I was first getting into the hobby, I was messing around with the xenon flash circuits in disposable cameras and made the mistake of touching it with both hands. Took a hit right across the heart from a roughly 200-300V, 100uF cap. No major damage, but it definitely knocked the wind out of me.
-Once at work I was helping slide around a large, very heavy TWT amplifier with live 240VAC connections on a terminal block on the back. I reached around to grab the back corner and unwittingly put my fingers right over the terminals. Aside from uttering a few choice cusses in front of my supervisor and co-workers (and perhaps some minor injury to my pride), I was okay.
-At home, I was soldering in shorts and managed to get a big drip of solder on my thigh. Left a nasty burn that took a while to heal. The scar is mostly gone now.
-A little more recently, I managed to get my fingers a bit too close to the HV section of an analog oscilloscope. I'm not sure if I actually touched it directly, but I'm pretty sure saw (and heard) the spark jump to my fingertip. Definitely made me yelp, but thankfully no real damage.