Sorry for the thread creep, but if an Airbus ever does something that you weren't expecting, it is your situational awareness or your understanding of the systems that is the problem, not the Airbus. I am sick of people blaming and slagging off Airbus. Airbus make fantastic aircraft which are very safe and efficient if operated correctly, (and so do Boeing).
Every thing an Airbus FMGS does has either been programmed by you, selected by you, or is in reaction to a situation that you or the atmosphere has caused. Nothing should therefore be a surprise.
There are pilots, including some of those who have gone from Boeing to Airbus, who have clearly not taken the time to properly read, learn and understand the Airbus systems. Again, this is their problem, not Airbus's.