Don't mess with Texas, and apparently even Texas shouldn't mess with Austin.
In 1842, Austin almost lost its status as capital city during the Texas Archive War. President Sam Houston had tried to relocate the seat of government from Austin to Houston, and then to Washington-on-the-Brazos. In the dead of night on December 29, 1842, a group of men was sent to take the archives of Texas from Austin to Washington-on-the-Brazos. Angelina Eberly fired a cannon at the men, who made their escape, only to be caught by another group of men who returned the archives back to Austin.
Actually, that should be Houston shouldn't mess with Austin. IIRC, they all got back together to invade Mexico a few months later.