Making people unhappy is seen as a cheap way of getting rid of them in some organisations. Rival companies start laying off staff. Senior management begin talking about competitive pressures and the need to improve productivity. You don't have enough work to do or the amount of work for your department is cut back. New people are brought in to manage your company or it is taken over.
Bosses find it a lot easier to get rid of strangers than of friends.
More than 2 million people, nearly one in 10 employees, have been made redundant in the last two years.