I remember once peering into a deep pool on a river somewhere, and not being able to see much, because of a layer of “scum” for want of a better word, and PD turning to me and saying (with the most subtle tones of disdain), “you like that stuff don’t you!”. Yes I do. The truth be told, such scum is often an accumulation of wattle pollen or flowers, and pollutants of unknown origin, and is blown into a pool by an awful berg wind, all of which I dislike with a passion. I have previously written of my inconsistent