I have noticed in my 50+ years of life that there are people who take joy (sometimes great joy) out of “getting under” another person’s skin. Is there a clinical definition for this behavior? Perhaps it is a personality disorder.
(There is a non-clinical way to describe such a person but civility restrains me).
I have noticed that people who exhibit this behavior seem to be looking for a reaction. And by seeing a reaction to what they say, they see their control over another person. It may also be the only way the person knows how to impress others (possibly due to low self-esteem).
I have searched the internet and all I have found so far is information on how to deal with such a person.