Beggars ruining shooping experience

The past while a tremendous amount of beggars have appeared at the Byl's Bridge store. They follow you around between aisles and harass you for money or for you to pay for whatever is in their basket. They will follow you around constantly, even all the way to the tills, constantly trying to convince you to give them money or buy their items for them. This not only ruins the shopping experience but can also lead to petty theft and purse snatching. It also seems that the staff ignore their presence. I don't mind helping out where I can, but I can't help out every time. This has made me bypass this particular branch on a number of occasions.