I was walking back home from Futako-tamagawa, back towards Kaminoge – incidentally along the same path I'd walk home along when returning from teaching at St Mary's – when I had a bizarre flashback concerning a train of thought I once had while walking down this path on a rainy day, many years ago (ie. four). It was a dark and rainy day, quite sombre, and I was toddling back home under my trusty umbrella, and I remember having specifically this line of thought... there are many side roads branching off, quite a few side paths, some stairs, and hence a lot of dead angles for someone approaching them (ie about to walk past them). And somehow I got into thinking, on this rainy sombre day, that it would be quite freaky if, while walking past one of the aforementioned dead angles, there were to be some messed up psycho-clown waiting there (perhaps under and umbrella himself) for a victim.
... and I thought that a few years of logic, mathematics and physics had warped my mind, but I was evidently not too sane to begin with.