I just moved to the area not long ago and visited this Petco location for the first time about a week ago.(Nov. 20th 2017). I bought a collar for my dog and a few dog treats. No complaints. However, I returned a few days later to purchase shampoo for my Dog. When I got home I noticed the "use by" date on the product was 05/2017. Today (November 27th, 2017) I took the product back to the store to get a refund; I was told they couldn't give me my money back without a receipt. Then after I asked to speak to a manager, the manager (who never came out the back) instructed another employee to inform me that I could just switch the product out. Mind you, all of the other bottles also were on shelfs being sold with expired "use by" dates. I've attached pics of the product, and the other single product they had on the shelf that was also expired (04/2017). A month or so I can understand, but but 6 or months past expiration and it's still on shelfs is completely ridiculous. Who knows what kind of ways this product could have affected my dog by using it past the expiration date