I went in last week for a decaf coffee with oat milk, I've been in a couple of times in the past. This time the lady on the counter refused to sell me a decaf. She said I wouldn't like it and would only come back to complain. She also told me that decaf was bad for me and that I should have a herbal, ginger latte instead. I told her it was my choice, but she continued to refuse to sell it to me. So I left. What kind of business refuses to sell to their customers?