I have been a member of Costco for many years, but I will not renew my membership again. I am a on-going cancer patient. My doctors have told me to not wear a mask because it decreases your immune system. I cannot afford that. Several weeks ago I was in your store and had one of your employees get nasty with me just because it wasn't covering my nose completely. I cooled my temper, paid my bill and left. Last week while in town, I stopped by to make a purchase. I had only been in your store for maybe 10 minutes and in that time I had 3 employees get nasty with me about the same thing. I had my mask on but it was not completely covering my nose. The 3rd person was an upper management person who informed me that if I didn't keep it above my nose, I would have to leave. Who do you think you are to dictate my health and well being. Not only that, it's against my constitutional rights to tell me how I must live! I have spent thousands of dollars between my family's personal purchases, and my wife's business purchases. It's companies like yours that are driving this country down!!!