It is sad to discover that some of the stocks on the rack have expired. That is due to the negligence of the warehouse checkers. Maybe there should be a supervisor to check the reports of the checkers. I understand that it is not easy to check for the expiration date of the stocks but it can be done when you have a good system for the procedure. It is always FIFO (first in, first out) so the stocks on the racks can be clearly identified.