I had occasion to change over over a ground station VHF antenna at LGW one thundery day, not being the brightest of chaps, I didn't think about the possibility that it might result in a static discharge, but it did! The suprising thing at the time was that it didn't stop, the end of the coax lead continued to earth almost continually. If a 1 m whip antenna can induce such current I wonder what potential there is in an aircraft.
As a by, the recent thunderstorms which rattled by LTN resulted in me having to replace my modem and graphics card in my PC, thinks I be investing in a surge protector.