Customer bricked a phone – and threatened to brick techie's face with it

On Call Friday is the day the working week goes to die for most people - unless, like many a Reg reader, they're on call to provide tech support at all hours. Which is why we use this day to celebrate those hardy souls with a fresh instalment of On Call - the reader-contributed column that celebrates survival in the face of stupidity, mendacity, and substandard manners....