That BMO in the city where I am living doesn't need Sin. No. But if one has a bank account at BMO, it doesn't work for guys who wanna put cash in the safety box.
I am wondering how the rumor was spread, actually people saying that, don't have such an experience. ''Dao ting tu shuo''
On the other hand, as we all know, it needs 2 keys to open the box, how dare the bank open the box without the owner's permisson?