An increasing number of people are suffering from "work rage", often reverting to shouting and yelling abuse at colleagues, according to a new report.
A survey of 1,200 employees showed that four out of five lost their temper at work, usually out of frustration with a colleague not pulling his or her weight.
More than two thirds of those questioned by employment law firm Peninsula said verbal abuse and yelling was common in their office.
Deb Gibbons of Peninsula said: "If you are one of those people who throw their BlackBerry at the wall because you are frustrated at work, or snap at a co-worker while discussing how much you hate your job, then you are not alone."
The report urged people to consider whether workplace rage was a sign of stress or of general annoyance with colleagues.
"If it is stress, then workers need to sit down with management to discuss the problem because it is something that will not go away.
"However if it's a problem with a colleague then it is time to sit down and try to resolve any differences."
Peninsula said some firms were considering "cyber-venting" to give disgruntled workers the chance to air their grievances online.
Firms were urged to encourage staff to take regular breaks, and have a proper lunch in a bid to reduce stress.
