This is a blog post from an Italian astronaut who almost drowned in his spacesuit while outside the space station fixing something: http://blogs.esa.int/luca-parmitano/2013/08/20/eva-23-exploring-the-frontier/. It's an incredible story and I'm glad he survived. Amazing that he stayed as calm as he did.
Oh, and I got to that story because I came across this story about software having to be patched on a space capsule due to mismatched data formats: http://www.theregister.co.uk/2013/09/24/cygnus_dock_with_iss_delayed_due_to_software_glitch/.
OH man, I remember this story
Crazy to think that you could drown in space