OK, so can we summarise\generalise by saying that light or moderate rain for a shortish period of time (a few minutes) probably won't cause it any bother. Obviously I realise it's not an 'underwater camera' and wouldn't leave it stood in heavy rain either. I just wanted to check that if it got a bit of a splash it wouldn't ruin it.
I don't actually leave my F5 stood in a torrent of rain either, but I know that I can use it in the rain without having to fret about getting it covered up straiht away.
By the sounds of it, the Hassies are quite tough and can be used in a variety of conditions, from hot to cold, dry to wet, but just nothing too extreme. If that's not the case, please let me know, but that is what I have summised by the replies to date.