A Bay Area veteran said she was shocked and humiliated after she was kicked off a Delta flight at San Francisco International Airport because of a T-shirt she was wearing.

Catherine Banks was scheduled to fly out of SFO on Wednesday when a flight attendant told her the shirt she was wearing was threatening. The T-shirt read: “Don’t give in to the internal war. End veteran suicide.”

Banks, a Marine Corps veteran, said the words on her T-shirt reflect the work she does for others.

“A male flight attendant said, ‘Ma’am, ma’am.’ I looked around and asked myself, “Who was he talking to?” And it was me. He said, ‘You have to get off the plane,’ and I said, ‘What did I do?'” Banks said.

It was only when she exited the plane and was on the jet bridge that the flight attendant explained to her why she was being asked to deplane.

“He said the shirt you were wearing was threatening,” Banks said. “I said, ‘Are you kidding me? I am a Marine Corps veteran. I’m going to visit my Marine sister. I have been in the Marine Corps for 22 years and worked in the Air Force for 15 years. I “I’ll go see them.” He said, “I don’t care about your service, and I don’t care about their service.”

Banks said she wasn’t wearing a bra and had to turn around so the flight attendant couldn’t see the front of her as she put on a sweatshirt.

She was allowed back on, but was not allowed to sit in the seat with extra legroom that she had paid extra for. Instead, Banks said, she was told to sit in the back of the plane.

The flight was delayed and she missed her connecting flight.

“Delta is attempting to contact the customer directly to learn more so we can begin investigating the incident,” a Delta Air Lines spokesperson told SFGATE.

Delta did not immediately respond to NBC Bay Area’s request for comment on Thursday.

Banks told NBC Bay Area later Friday evening that Delta was trying to make things right.

On Delta’s website, the airline said it reserves the right to remove passengers from a plane “if the passenger’s conduct, clothing, hygiene or odor poses an unreasonable risk of offense or harassment to other passengers.”

This isn’t the first time Delta has denied someone a flight because of what they’re wearing.

In March, Lisa Archbold held a press conference with her attorney Gloria Allred and explained how she was asked to deboard a Delta flight to SFO because of her choice of clothing. Archbold said she believed the airline had a problem with her not wearing a bra under her shirt and was told, “Women need to cover themselves.”

Delta then contacted Archbold with an apology.

On Wednesday, Banks said humiliation was the only way to describe her feelings.

“I feel like they just took my soul. “I’m not a bad person, and with this shirt I should be allowed to support myself and the veterans,” Banks said.