Lightning - Just go inside!
Spring storms bring cloud to ground/cloud to water/cloud to pier lightning strikes. Don't tempt fate. Lightning can kill you. It's not worth just one more cast. Go get you a biscuit at Hardee's or Hazel's and wait it out.
You have to be willing to make it a rule or else you could make a bad decision. When I was young, lightning struck the water right out in front of the pier. It had just started to rain and the pier was saturated. Electricity was conducted by water and I felt a faint shock run up my leg. That was enough of a warning for me!
Be careful and stay safe!