"Bob Gardner" wrote in message news:bgFIb.16418$I07.44872@attbi_s53...
Well, it's been awhile, John, and I can hardly remember things that happened
last week, much less things that happened in the 70s. However, I do not
recall anything odd happening to my body during the ascent to 25000 but do
recall my lips doing the blub-blub-blub thing during the decompression. As
the pressure in the chamber rapidly increased, it kinda pushed the trapped
gas out.
It's the other parts of your body doing the blub-blub-blub thing that's problematic.