I have a similar opinion on lightning. Even during a thunderstorm, we just don't get the frequency of strikes that places like Tampa get.
My house has been sitting in one place for > 20 years, with a giant grounded steel rod sticking up 30 feet in the air, in every thunderstorm that's rolled through, and it's never been struck. I'm much closer to the ground and less well grounded. Statistically I'd probably have to ride in every thunderstorm for 300 years before getting struck. Riding in one or two a year, I'm not too worried. Much more likely to die by MANY other causes.
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Work: the 8 hours that separates bike rides.