We use the same precautions that we use when camping anywhere. Keep food secure and out of sight. You shouldn't have any problems.
Not that there aren't lots of critters in and around FW. You are likely to see deer, peacocks, squirrels, rabbits, and armadillos. There is a family of raccoons that hang out near the campfire begging the CMs for popcorn. Occasionally the early morning bus drivers report sightings of a panther in the area.