My guess is the majority of folks would not be able to tell a Milksnake from a Scarlet Kingsnake from a Coral snake.
Certain Shovel Nose snakes also have a similar pattern, but they don't occur in Texas.
The Coral Snake does possess a Neuro-toxic venom and they do tend to be a docile snake. A couple of misnomers about the coral however:Actually they have a nerve toxin that is extremely dangerous to us humans, but you are right in that they are fairly docile and their fangs are in the back of their mouths. They must get enough flesh to chew on, not stab like the other poisonous snakes we have (copperheads, moccasins, and a variety of rattlers depending on where in the state you are). Coral snakes also kill other poisonous snakes.