Why are there always such people in universities? He always likes to make jokes about other people's affairs. Sometimes other people's food can be used as a joke, which is the most

Because people who are empty or lack self-confidence are often afraid of others paying attention to themselves, they often make fun of others. The purpose of doing this is to divert others' attention and get a little satisfaction to fill the empty and helpless heart.

Although this practice is immoral, it is actually a manifestation of self-protection mechanism.

What's more, people with special acting personality or narcissistic tendency often aim at grandstanding and attracting others' attention. They always base their happiness on other people's pain to seek so-called stimulation, and never consider other people's feelings, so as to show their humor and wisdom and win other people's attention and applause.