And wiggle it if it is hard to get out, pull on one side, then the other. Most plugs from computer stuff are really big and easy to get a hold of. I have lamp plugs that are 50 years old and only a half-inch deep and they might be hard to grip.
I'm wondering too. And what is a three-pronged data cable? What kind of data cable is plugged into the wall in the average house?
I don't unplug anything either. I may have lost an internal modem via a surge on the phone line, or maybe it broke for some other reason.
But I did have a girlfriend who lived on a wooded lot with a lot of trees just outside her property, in Baltimore. She said that she lost two fancier than average telephones, a fancy microwave, and the refrigerator in one lighting storm. I replaced the electronic module for the microwave but it was expensive, 30 to 50% of the cost of a new microwave. 60 to 100% of the cost of the microwave used, but I've never understood that comparison since she had no way to buy it used, unless she wanted to spend weeks going to yard sales and looking at ads etc.
Despite all that she lost, no one moves the fridge to unplug it in every storm, and the odds are so low that I don't blame them.
Oh, I may have also lost the control panel for my home burglar alarm because of lightning, but maybe it was some other cause. One morning when I was leaving for work, there was a little smoke coming out of it.
Lightning doesn't usually hit the house, or its damage is really visible. It hits a tree outside and induces currents in a wire going into the house.
Lighning rods don't conduct the lightning to ground. They are so thin they'd melt. IIRC they conduct to ground the negagive charge that would build up at the top of the house, and the lightning isn't attracted to the house anymore. Something like that.