Not the first time I have heard about people in Texas getting strange
about the "wrong" OS, though in this case it is an OS mascot that
caused grief...

Before I get to that, everyone should be aware of FreeBSD, a free Unix
like OS that has formed the basis behind Macintosh OS-X. The BSD
mascot is known as "Beastie", the story of which can be seen here
(along with links to "Beastie" images):

http://www.freebsd.org/copyright/daemon.html

The story of what happened to Linda Branagan when she wore a Beastie
T-shirt to a Texas restaurant can be seen here:

http://www.rmitz.org/freebsd.daemon.html
The FreeBSD Daemon

Linda Branagan is an expert on daemons. She has a T-shirt that sports the daemon
in tennis shoes that appears on the cover of the 4.3BSD manuals and The Design
and Implementation of the 4.3BSD UNIX Operating System by S. Leffler, M.
McKusick, M. Karels, J. Quarterman, Addison-Wesley Publishing Company, Reading,
MA 1989.

She tells the following story about wearing the 4.3BSD daemon T-shirt:

Last week I walked into a local "home style cookin' restaurant/watering hole" in
Texas to pick up a take-out order. I spoke briefly to the waitress behind the
counter, who told me my order would be done in a few minutes.

So, while I was busy gazing at the farm implements hanging on the walls, I was
approached by two "natives." These guys might just be the original Texas
rednecks.