hi everyone! I'm new to the site but I've just gotten my very first Birkin (thanks to my darling husband). Its the 35cm in blue jean with the palladium hardware. It is everything I ever hoped it could be. But I live in London and I'm terrified of the rain. Now it does come with a rain coat and I know about the spa service and everything but what I'm wondering is if there is any treatment I should do to it now to prevent potential damage from an unexpected rain shower. Is there a leather protector I should use or does it come pretreated. I asked the lady at hermes and she seemed to think it should be fine. But I do ordinarily leather protect my bags. Any advice??