Preparation for departure at 6am on 1st September is well under way, but with a background air of anxiety sometimes bordering on panic.  Will everything we need to do be done on time?  Will we remember everything we need?  And, what about the crash helmets we've to take - will we have to wear them through airport security?  Apparently, in Cameroon, transport is largely going to be by motorbike taxi, hence the crash helmets.