Canon Andy Griffiths has been an English teacher, a very ineffective waiter, a theological college director and a Vicar; he now trains ministers for the Church of England in East London and Essex and tweets quotations from or about Zinzendorf, the eighteenth century theologian, at @zinzendorf4u.
Andy's book "Refusing to be Indispensable: Vacating the Centre of Church Life" can be purchased from Grove Books here: https://goo.gl/ysyJ1J