[I wrote this back in April, at a point when my time at Kent was drawing to a close and the overload factor had been high for a long time. My current situation at King's is radically different! Whether that will last is less clear.] As a graph theorist might put it, my in-degree is too high. My time and (especially) head-space are scarce resources. Access to me needs to be limited. Ironically, it requires a certain amount of big-headedness to say this. Big-headed it may be, but failing to att...