That is indeed a very dangerous issue, and certainly worth checking in to.
Sorry Disbeliever, but I think we're suffering a case of "the boy who cried wolf" with you.
No car is 100% perfect, I'm sure none of us believe our cee'ds are, however moaning constantly as you've done since joining us won't achieve much except ostracising you from serious conversation here, or any where else to that matter.
Thankfully my car has rear drums (yes, very small ones that live on the inner of the main disc ring) as the handbrake, as I believe most/all 'discs all round' cars have.
As mentioned above, disc brakes are not suitable for handbrake duties, to my knowledge any how.