The document discusses a company's question about closing production for extra days at Christmas without deducting from employee annual leave. The lawyer responds that if the Christmas closure was discretionary and not a formal contract term, the company can change it. However, employees could argue the closure became an implied contract term through custom and practice over many years. The lawyer advises announcing the reasons for keeping production open this year and allowing employee concerns, though employees may accept the change without legal action given it's only a couple extra holiday days.