Inside job should be a short list, of suspects. Doesn't seem this person can have a very high I.Q., if several people, had the combination.
I think it will be a short time, until they get their dough back!!!! IMHO
In the meantime, "I've got to make the donuts".
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).