I recently read in Gulf Times or The Peninsula - online, that in Lu-Lu Hypermarket it happened the same: one lady at shopping there realized the missing of her money from the purse hanged on trolley...Security searched the video registration and they saw there is a woman with her daughter, totally black dressed, in action...So,I am sorry for your bad day, be careful and do not leave your bag unsupervised hanged on or in the trolley anymore...I had also bad experiences and I learned to wear a "mail-man" type bag while shopping in my country ;-)...