How long would you last if you didn’t have easy access to food, water and electricity? Retired Marine Alfred Legler knows many city dwellers aren’t prepared for when a disaster may strike. That’s why he began teaching classes to help El Pasoans learn basic survival skills. “A lot of people have never been out of the city. They don’t know how to hunt, they don’t know how to fish, they can’t look down on the ground and identify what kind of plant is edible, what kind of plant might have some medicinal use.