I have a personal reason to hate A340s.
They had a design flaw. Those folding loo doors used to have the fold edges fit flush (Boeing have always had them chamfered) so I goes for a leak ad pushes the door shut to find all the high nerve density soft flesh on my right hand trapped in the fold. I've had all sorts of painful experiences but that one was possibly the worst.
I shall report back about BinLiners in November