I know that the dialogue in radio dramas isn't supposed to mirror real life exactly. Still, it irritates me when a character sounds excessively stilted. Perhaps, for some people, it's common to say, "I shall wait in the kitchen." However, whenever a character uses the word shall unnecessarily, I think, "You're not an aristocrat. Say, 'I will wait in the kitchen,' or better yet, 'I'll wait in the kitchen."
Why be pretentious when conveying such mundane information?