Thank you Dave for being such a good colleague, and for your robust sense of humour, especially when directed at the school establishment. Thank you too for enhancing my children's mathematical education. I hope you don't misbehave in heaven, especially if you team up with that Kevin Malone-Lee fellow. I am sure you will make the angels flutter but your earthly record is reasonably creditable and I am sure the Almighty will allow you to stay on. Rest in peace Dave, god bless. Roger.