The walgreens on 11th in Niles, Mi I was talking to the cashier as I was checking out, we were talking about N95 masks and their ineffectiveness in stopping the spread of a respiratory illnesses, Kaylee the manager yells across the store, "It's company policy, nothing we can do about it." Very rude and combative. I said, "I wasn't talking to you." She became very rude and aggressive saying, "well I am the store manager, and your harassing my cashier." The cashier tolled her eyes, saying no he wasn't. We were simply conversing. She tells me to leave and cancels my purchase. Denying me service. I am from Chicago and have been a life long customer. Used to be a tine when the customer was always right. I will be transferring an prescriptions to rite-aid or CVS. I will never shop at a Walgreens again.