I can relate so much to this. I have definitely added sarcastic comments to essays, and once even in a presentation. Good thing the profs had senses of humour. Although in the case of the presentation (it was a group project), my INTJ friend was completely mortified and kept her part "clean" whereas my INTP friend was encouraging me and trying to find other places where we could add more.
I wrote whole essays on the stupidity of the assignment using the words relevant to the actual topic as mere metaphors. Of course, they were never read properly, which is delightful and annoying at the same time.
It's like I went back to high school all over again. Find a new outlet. Grow up.
I expect more from people who are as smart as you are. It's a shame.
If you think I am going through all these god damn arguments again, you must be more insane than you appear to be.
The Diagnostic and Statistical Manual of Mental Disorders fourth edition, DSM IV-TR, a widely used manual for diagnosing mental disorders, defines narcissistic personality disorder (in Axis II Cluster B) as:
A pervasive pattern of grandiosity (in fantasy or behavior), need for admiration, and lack of empathy, beginning by early adulthood and present in a variety of contexts, as indicated by five (or more) of the following:
Has a grandiose sense of self-importance (e.g., exaggerates achievements and talents, expects to be recognized as superior without commensurate achievements)
Is preoccupied with fantasies of unlimited success, power, brilliance, beauty, or ideal love Believes that he or she is "special" and unique and can only be understood by, or should associate with, other special or high-status people (or institutions)
Requires excessive admiration Has a sense of entitlement, i.e., unreasonable expectations of especially favorable treatment or automatic compliance with his or her expectations Is interpersonally exploitative, i.e., takes advantage of others to achieve his or her own ends Lacks empathy: is unwilling to recognize or identify with the feelings and needs of others Is often envious of others or believes others are envious of him or her Shows arrogant, haughty behaviors or attitudes
It is also a requirement of DSM-IV that a diagnosis of any specific personality disorder also satisfies a set of general personality disorder criteria."
People who think that being "INFJ" (which apparently everyone who has only a passing interest in MBTI is!) is an excuse to be a special snowflake (like everyone else), to complain about how misunderstood and brilliant they are, and to bitch about almost every other type are really a bit tiresome.