Scatomancy   Divination by excrement, it goes way back, Egyptians had dung beetles to forebode the track.   Séance dans la toilette might draw quite a queue, spirit voices in flatulence: Uncle John, is that you?   Levitating the seat, with knocks and a spasm, (but don’t get me started on ectoplasm).   Add some Tassology, a discount price tag, you fast and drink tea, then eat the tea bag.   The Age might be keen on a regular forecast, or, à propos, a daily aftcast. My column would be practical, The Phoenix, 4th page, after auguring the omen, you…