also found that most users experienced computer rage three to four times a month. Differences in types of computer rage have also been found between different geographical regions. For example, one survey found that individuals from London have been found to be five times more likely to physically assault their computers, while those from Yorkshire and the Humber were found to be more likely to yell at their computers. Differences have also been observed for age groups, as younger adults (18–24 years old) have reported more abusive behaviors in the face of computer frustration when compared to older adults (over 35 years old). Individuals with less computer experience in particular have also been reported to experience increased feelings of anger and helplessness when it comes to computers, but other research has argued that it is the self-efficacy beliefs about computers that are predictive of computer frustration, not the amount of computer experience or use. In 1999, Professor Robert J. Edelmann, a chartered clinical, forensic and health psychologist and a fellow of the British Psychological Society, was offering a special helpline in the UK for those with technology-related anger. Causes Computer factors Users can experience computer anger and frustration for a number of reasons. American adults surveyed in 2013 reported that almost half (46%) of their computer problems were due to malware or computer viruses, followed by software issues (10%) and not enough memory (8%). In another survey, users reported email, word processors, web browsing, operating system crashes, inability to locate features, and program crashes as frequent initiators of computer frustration. These technical issues, paired with tight timelines, poor work progress, and failure to complete a computer task can create heightened computer anger and frustration. When this anger and frustration exceeds a person's control, it can turn into rage. Psychological factors Research on emotion has shown that anger is often caused by interruptions of plans and expectations, especially through the violation of social norms. This sense of anger can be magnified when the individual does not understand why they are unable to meet their goal or task at hand or why there was a violation of social norms. Psychologists have argued that this is particularly relevant to computer rage, as computer users interact with computers in a similar manner that they interact with other people (for more information, see The Media Equation). Thus, when computers fail to function in the face