I guess, I'm an old timer.....LOL! I always carry a plastic bread bag or two w/ me. If I get caught in the rain, I put my box call in the bag....that way if you want to use the call you still can, by simply playing the call while still in the bag. You won't get the volumn, but the soft calling is powerful and if you only have a box call, your still able to hunt.
"The True Measure of a Man, Will Be Found in His Words and Deeds"