Management-speak and all-staff emails have become some of the biggest office bugbears, according to a new study.
Phrases such as "thinking outside the box" and "going forward" were found to be among the most overused jargon, while other irritations included staff arriving late, or those who gossip about colleagues.
Many took issue with people sending an email to a colleague sitting opposite, a survey of more than 2,000 managers by the Institute of Leadership and Management (ILM) also found.
The study found management-speak is used in most offices, with even one in four managers describing it as a "pointless irritation".
Managers added that food and dirty plates left on office desks get on their nerves, while one in four bosses never make tea and coffee for their team.
Charles Elvin, chief executive of the ILM, said: "When office-based teams work in close proximity for long periods of time, we see that seemingly trivial issues can grow disproportionately, if left unchecked, and begin to cause upset and resentment."