Calum often boasts about how talented a teacher he is and he continually notes that the reason he never gets promoted is because no one fully appreciates him. he resents other teachers who have been promoted before him and claims that they are self-promoting. he demands that other people fulfill his wishes but is insensitive when it comes to other people's feelings. calum would most likely be diagnosed as having personality disorder.

Narcissistic personality disorder

Explanation:

Narcissistic personality disorder is a type of Cluster B disorder which is characterized by a person believing that they are more important or special than others, an arrogant behaviour, envying others or believing they are better that others, expecting favors and advantages unreasonably and sometimes taking advantages of others, fantasising about success, power and attractiveness, failing to recognize the needs and feelings of others.

Most of these characteristics are classical examples of Calums personality.

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