I work with people quite a bit. You run into all different kinds.

You're apt to run into problems with the personality types that fall on the narcissistic personality spectrum. Narcissists, sociopaths, and psychopaths.



Alcoholic personality disorders can be difficult. Of course there's the old joke : How can you tell if a junkie is lying ? ( Her lips are moving. )

People with cognitive disorders that fall on the autism scale can have difficulties communicating with others.

Really though .... these are all just labels. A label tells you a little about a person but that's about as far as it should go. Every person is unique in their own way.

You can even spot the bull$hitters on-line. Multiple user accounts are a dead giveaway.