Hi! I was wondering if it's possible to waterproof the Muse by spraying some waterproofing spray for leather? The girl at the YSL shop told me it can't be done because it will stain the leather. However, I was thinking - if it's a spray used for waterproofing leather, then it shouldn't stain the Muse right? I've used the spray on LV, Miu Miu and Chanel leather bags with no harm done... Please let me know if you have waterproofed your Muse and what spray you've used. Thanks loads!