Things were going so well at BOS until the last two trips. Both times two TDCs looked at me GE card and rejected it. When brought up to the three striper on duty, they seemed dismayed that the card was not recognized. Both game me a comment card without hesitation.
On the bright side, saw what I believe is how TSOs should behave. He was polite, soft spoken, helped pax get extra bins, and pushed backed up bags into the x-ray. Even used works like, Sir, Ma'am, Please, and Thank You. No barking, no rudeness, and treated pax like customers.