Iranian-American: but I'm Iranian. Not Arab.

Execs: blank stares Same thing though right?

Happened. That said, I wouldn't expect one to experience any malice in a corporate Texas environment based on ethnicity or race. Rather, there's often a narrow perspective, in that they want you to be as Texan as possible, ideally an alumnus of their favorite Texas university, and stick to the norms, as opposed to say NYC where diverse experiences are appreciated more.