I'm sure most people have silly little superstitions that they keep doing even though they think it's really a nonsense. Saluting magpies and that sort of thing. When I was a very young boy, my mother told me I must always bash out the bottom of the shell when I'd finished my boiled egg "so that a witch couldn't sail away in it to drown sailors". Hmm..... Oddly, I still find myself doing this now. Has anyone else heard of this one? Any other silly superstitions?