Where do you live that you haven't seen static electricity.
The humidity is about 20% in my house now.
If I walk across the room, on a rug then touch a person or anything grounded, or just something with a lower static charge, a spark will jump from my finger to what I touch.
The spark has no amps, but thousands of volts.
If you have a high static charge, and pick up a stick of memory, your charge equalizes to the memory stick.
Now if you then plug it into the computer, without touching the computer with your other hand first, a spark will jump from the memory to the computer, destroying the memory. (Not always)
If you live in a place that the humidity is high all the time, you will probably never see it.
One thing to remember, lightning is nothing but static electricity