If the lightning enters the skull the electrical current needs to leave the body this results in an exit point somewhere on the body, usually the knee caps, feet, or hands. To begin with know that a typical lightning strike carries an electrical charge of more than 100 million volts. It is so powerful that it can split tree trunks like match sticks. Lightning starts fires and is responsible for thousands of forest fires each year. Utility companies worry about lightning strikes, because these strikes can totally destroy telephone and power lines.
Lightning is so powerful that it can even knock an airplane out of the sky.
It is wise to fear and respect thunder and lightning. The heat from a lightning flash can evaporate water instantly and it can even melt metal. In fact you can be knocked to the ground just from the shock wave of a nearby lightning flash. Remember, never take shelter under a tree, because trees usually attract lightning. All four boys were caught up in the lightning that struck the tree.