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It seems to happen less and less, but every so often, the stars still align.

Possessing no eyes, no mouth and no face, with an almost alien lurching gait, that nightmarish figure will reappear every so often, its return always upsetting and unexplained.

Like Feinstein, Lurie wants to be a hands-on mayor, walking city streets by day, while at least every so often making it home early enough to sit down with his family for dinner.

She said: "Nobody knows quite how far they go, but every so often holes appear."

Just dipping into that world every so often and being reminded of how things actually are in a normal workplace.