Coughing

   It was kind of hard to get a recording of this, since it was mostly involuntary, but here you go:

http://comradehelicopter.wikispaces.com/file/view/coughing%5B1%5D/363156132/coughing%5B1%5D

   (It was also kind of hard to embed, so hopefully temporarily here's a link. You can click on it now if you want, but I'd wait for that embed if I were you.)