One of the visitors at my Worcestershire Open Studios exhibition last weekend asked how long a walk took me.  They asked because they reckoned I was always looking for things, and looking AT things in an unusual way, and that this must slow me down when I am walking.  They were right of course, my walks do tend to take longer than most people. One thing I look for is signs.  They are supposed to be put into the world to offer passing people information that is helpful, or to commemorate other people. Take this sign is a local churchyard.  I could say that Charles is only half the man…