On March 2, 1955, Claudette Colvin refused to give up her seat on a bus in Montgomery, Alabama. (Rosa Parks was not the first one.)
Miss Colvin was quoted during the trial:
"I kept saying, 'He has no civil right... this is my constitutional right... you have no right to do this.' And I just kept blabbing things out, and I never stopped. That was worse than stealing, you know, talking back to a white person."