NORTH-west workers are obsessive about their coffee mugs, new research reveals, with 41 per cent having a favourite cup for their coffee, and refusing to use one belonging to someone else.

The survey, conducted by Macmillan Cancer Relief to promote its World's Biggest Coffee morning, also reveals that more than one in 10 workers will send a begging - or threatening - email round the office if their cup goes missing. To hold your own coffee morning for Macmillan, call 0845 602 1246 or visit macmillan.org.uk/coffee.