A friend of mine refuses to take a shower or bath during a lightning storm. She lives in town and thinks that she will get hit by lightning in the bath tub or shower.
I used to poo-poo that idea, but it may have some merit. Induced currents in metal plumbing could be a concern.
I'm also starting to wonder about the old advice about holding metal objects "attracting" lightning. It may not "attract" lightning, but the induced current might be unpleasant. Of course, if lightning was inducing a current in something you're holding, you've probably got bigger things to worry about.