Relationships going sour, bust-ups, sibling rivalry... everything is possible in a family business. They can also be the most effective businesses around.
"When married couples go into a business environment together they are often surprised at the change in each other," says Peter Leach, family business expert at BDO Stoy Hayward. "You can't assume that because you know your husband at home he will still be the same when he is the boss. Assuming that your spouse won't alter in the office is easy to do but can be your undoing."
Millions of words have been spilt on the secrets of running a family business - whether it's how to prepare for succession, getting rid of family members or holding a family council. We reckon this diagnosis (first published in 1999) is among the very best.