Yes, there may be days at work when we all want to throw large objects.  It happens everywhere.

My friends at work added a few, like the people who go in the store only for free samples

Do you know I’ve never had a bad shopping experience at Costco?  The staff always appears polite and helpful and the place is, I believe, highly efficient.

Workers there are paid well (far above the industry average) and it may explain their attention to detail, albeit.  They still sometimes get verbally and physically abused by customers and some even put up with unwanted sexual advances.

Business Insider compiled some complaints from Costco workers.  You can read them at this link.  My friends at work added a few, like the people who go in the store only for free samples.  Or the lapsed members who blame staff for not constantly reminding customers to renew!