My mother was like your auntie Charlie.
1) sing at your meals trouble at your heels
2) if you cross knives it is a sign of an argument
3) two teaspoons on your saucer - sign of a child coming - I don't know whether that meant you would be pregnant or you would have a child visitor.
4) If someone gives you a present of a knife you have to give them a coin, or you would cut your friendship.
5) Never give a present of purse unless there is some money in it.
6) Spilt salt is spilt sorrow, so throw a pinch of salt over your left shoulder.
There were many others, I can't think of them now, but I often find myself NOT doing something I was warned would be bad luck.