After 2 strikes 1 that jumped switches or through 300000v air static
charge, went through Trip Lite surge protectors and wall switches, I can
honestly say unplugging is the only 99,9% guarntee you can get. Don`t
leave the unplugged socket to close to the outlet, on the last srike
that hit me at the same time a neighbor 250 ft away saw lightning shoot
6" out of his electrical outlet. On one strike I saw flourescent tube
lights switched off light up. No wonder my dog hides during thunder.