Just file it away, for future reference. The series he was doing required a lot of movements, so holding his breath that long was not an option. I also recall him working at well below zero, and getting into the habit of keeping the snorkel in while walking around. He said the air warmed, traveling up the tube... He was quite a sight, in that get-up.
Haha I can imagine!
~Stone | "...of course, that's just my opinion. I could be wrong."~Dennis Miller