That it makes a crunching sound
That you really can’t catch it on an iPhone indoors if any inside lights are on
That you should lift your feet off the ground if you are stranded at a bus stop
That you should remove all plugs from sockets in the house during a lightning storm
That if the storm goes on for more than three hours it can give you an actual headache
That you would rather stay at work late than walk out in it. Here in Sing, at least.