Lightning is strange stuff. There have been cases where it has smashed through brick walls from an external lightning conductor to an internal water tank for instance. People debate the best course of action. One man had severe chest burns after lightning took a path through the medallion hanging around his neck - did that 'attract' the lightning or did it save him by diverting current from his bod?. What is 'hard fact' is so-called 'step voltage', lightning hitting the ground can set up a voltage gradient along the surface. Humans are usually OK but cows with front and rear legs far apart can be electrocuted even though strictly no lightning hit them. Similarly farm fencing when hit can 'flashover' to adjacent animals, so good practice is to break long runs of wires. Lastly lightning can strike twice, even 50 times. Certain electricity pylons seem to be very attractive. Keep indoors, keep away from trees and fences.