He, she or it (whatever that individual prefers to be identified as, at 7:20 this sat morning) needs to learn how to appreciate a tip, as well as customer service. Pulling up threw drive threw the individual couldn't even say good morning. Running my card I give a dollar bill & didn't even say thank you, just quickly went back to their conversation with coworkers. Windy's even said "good morning" & "thank you" off the same action 5min later. I've worked for a fast food, coffee house to fine dining & never have I been that way with a customer or guest. I would not won't the spokes person for my chain to ever act that way. I hope you learn guest service.