So there I was ascending from 9m to 6m ready to face my 25 mins on O2 (after an hour on 28% at 40m) quite happily minding my own business being at one with the world. Arrived at 6m, tied off the spool as per usual (one of the super-shiny Apeks 60m spools that needs a twist with the double ender to stop the line slipping through), just about to switch gas and a wave came along that bounced the spool. And the sodding double-ender jumped out of the hole in the spool. Went to grab it, but just out of reach and watched it descending below me. Damn. I like that spool and it's only 40ish metres to the bottom, so I'm likely to loose it. Hmmm. So did the switch to O2 and have 25 mins to kill. So started winding the string around the palm of my left hand. After a dozen turns I realised I should really be using the spare spool -- or wetnotes -- to wrap the string around. Wotever, I've started so I'll finish... After an eternity of winding I finally could feel the spool coming up. Hurrah, the spool is tied on to the end of the string. Then the task of winding the string off my hand and back on to the spool. Bleeding hell that takes a time, and doubly so as I don't want to drop the sodding thing. Finally completed. Oh, only 2 minutes of deco left. Probably the most interesting deco I've done in ages! On the next dive, a bit shallower, had only 15 mins to do, so made sure I used two double enders to stop the sodding spool unclipping itself again. It does bounce around when there's a chop above. Wondering if it might be better to use a suicide clip or something similar. Any ideas?