What's for dinner? and Why do you say that?

When my gramma (Victoria Voyles), and her first husband (Sylvester Apiki) would go riding it would amaze her sometimes when for no reason she could see, Sylvester would stop the car suddenly and jump out to grab his fishing net. She's looking at the ocean and can't see anything. Where are you going? He'd reply, "There's a huge school of (name of fish)" She would look but still not see anything. He would try to point it out but she very rarely say them. But she had learned to sit and wait till his return. She always knew that whatever he came up with was what they were having for supper that night and for her that was okay. She never knew how he did it but she was always grateful for it.

Sylvester loved his fishing and would go out all the time. But as a fisherman he was very superstitious as well. If he was heading out the door and my gramma would yell good luck he would start cussing and turn around. He would not go out anymore that day. I wonder if my gramma said good luck sometimes just to piss him off? That wouldn't surprise me seeing the glimmer in her eyes when she told that story sometimes.