My late mother had sayings like these to cover every occasion.
Every new moon she'd issue us with a couple of pennies each to take into the garden and "turn them over" beneath the moon to ensure prosperity for the coming weeks and we were forbidden to look at a full moon through a window..
She had so many of these sayings and superstitions I can't now remember them all but heaven help anyone who puts new shoes on a table or crosses a pair of knives in my house!
My mom had a thing about hair, if you had it growing in front of your eyes she would say, "Comb your bloody hair otherwise you will get the raving stagmas" Whatever they were. As kids when we saw people falling over whilst singing in Welsh when leaving the pub we also believed they had the raving stagmas. We did not know about the effects of the demon drink.