They must be fire-proof because they will live in a fiery moat, placed in front of the coming border fence. Their fire-proof ability is achieved by covering their body in an armor made by Knox College honorary doctorates. Fire-proof Crocodiles are extremely venomous, and 100000000000000000000% American. They have the instinctive ability to sense what Mexicans are the good kind that are just sight-seeing and which kind are going to try and illegally immigrate to America.