Looks like the clouds are moving in and it's going to thunder storm!
All Objects are neutral before they touch other objects but when polarized a storm cloud"s electrons will shift down because it is atrracted to the protons
since metal is an insulator the thunder cloud is charged by indiction it will send a lightning bolt at the metal.
the pole was connected to the ground and so was he. meaning when something is touching the ground when struck with lightning will still shock you. as you can see when he touched the metal he got electrically shocked by the lightning because the pole was made out of metal and meal is an insulator.