SAR Helo flying is lots of fun until you have to pluck a dead bloated body from a waterfall. (#trueStory)
There was a sim instructor at HSC-2 when I went through that was part of a land based HSC-84 detachment in South America. One day while flying over some body of water they spotted a body. Thinking it was the right thing to do, they sent a swimmer down to pick it up. Evidently the body was in bad shape and had been in the water a long time. When they flew back to local airport to deliver the body to a coroner they were quarantined for hours on the flight line. He said they wouldn't even give them fuel during the quarantine period, so they had to shut down the APU/AC. In the summer. In South America.