The thing about a coral snake is, it isn't part of the viper family. It really doesn't have 'fangs' to speak of and it's jaw doesn't open wide enough to really bite anything. If you are barefoot or in sandals, it may be able to get your little toe. That's why I worry about my daughter playing out in the yard.
And they don't just strike and pull back. They latch on and gnaw on you.
Keep them feet covered Haz! 
Good post Tex.
The fact is that most folks get into trouble coral snakes two ways.
1. They like to burrow under leaf piles, wood piles, fallen logs etc. and bite when startled.
2. They are a very docile snake and will actually let you pick them up in the wild (if you are that deeply weird) until they feel threatened. Because they are small, usually under 2 feet, and pretty, a certain amount of idiots do this.
Unlike rattlers or particularly moccasins, they are a very mellow snake. They also have short fangs, asTex mentioned, they actually have to gnaw to get the venom in. Jeans and boots will ward them off. Down side is that they, unlike any other North American snake secrete a neurotoxin. Once you're bitten you've got on average 90 minutes or its game over. Fish and Game says they are threatened and should be left alone. Generally I agree with that philosophy and I follow it in the woods. If they are in my yard, they are extinct.
FQ13 who is a bit non PC when it comes to snakes