Cool pics bull! Looked like quite the experience for you!
Last month our hospital did a disaster drill as well. They were searching for volunteers. I almost did it until they told us we had to strip down for the hazmat showers!

Theres just something about having your co-workers seeing ya naked!
It's bad enough that some of the Docs of the ER dept. (which I used to work under before my promotion) insisted on me stripping down for an EKG last month when I was hit in the head with a shovel. (my son did it on accident, nailed me good! Gave me a concussion) Talk about walking a fine line there, huh?! The Catscan would have been enough. Not to mention I had a male nurse who doesn't quite look at me the same as before. Now, he always makes it a point to say hello. Talk about embarassing!
Anyway, looked like you had fun, stuff like that is always good to take part in