No, you don't. That notion has been debunked numerous times. It's just folklore and something drunk people say at sporting events against non-Texan teams.
Technically _all_ the states have that option. The Constitution doesn't prohibit it, tenth amendment reserves all other powers to the states; they entered voluntarily into the Constitution believing it would help them each individually. The reason it's "debunked" is because of the might makes right attitude that took hold because of the Civil War. That attitude doesn't take people to good places...
