Nimrod is presumably pretty good at ditching as it doesnt have underslung engines and therefore has a cleanish underside which allows it to sail like a boat on water!
I always find the lifejacket section of the safety briefing rather amusing on my regular flights from UK to Holland as the only sea I'm going in is the North Sea and I'll last about 15 mins before dead from hypothermia if I'm lucky, even without having suffered a ditching first...All seems a bit pointless for the more northerly sea crossings...
Edited to add:
...however, I do appreciate that it is appropriate to have a standard(ish) briefing the world over, as the lifejacket situation is rather more relevant the closer to the equator you get. And if it also helps to soothe some nervous flyers, then its all fine and dandy
It is, however, a shame so many individuals continue their conversations during the briefings with scant regard to those who wish to listen/watch
