Two perfectly normal people having a perfectly normal conversation:
EXT. TRAIN STATION – DAY
Joe and Harry sit on a bench together, watching the trains go by. Joe eats a tuna sandwich and Harry holds a large mug full of coffee.
A train whistle sounds.
HARRY: Why does a train whistle when it’s coming into the station?
JOE: I suppose so people will know it’s there.
Harry sips his coffee.
HARRY: Kind of hard to miss.
JOE: I married Agatha on a train. We fell over a lot.
HARRY: It’s too bad that didn’t last.
JOE: But then I met Ruth.
HARRY: Things like that never do.
JOE: And we never rode the train.
HARRY: I always liked Agatha.
JOE: You mean Ruth.
HARRY: No, I mean Agatha. I love her. We’re getting married.
JOE: (looks at Harry) Where?
HARRY: In a church.