Sounds reasonable, except:
0 = Lifejacket.
You have to make it into the liferaft in the first place.
Edited because mad jock's subsequent post reminded me I'd forgotten something: Thanks, Peter, for the RNLI perspective - very interesting and thought provoking.
Last edited by DaveW; 24th Nov 2006 at 22:35.
Reason: Thank you, chuns