[Peace of mind]

Ignore them and move on. Some mean people are honestly not aware of the pain they’re causing to others and themselves. Be mindful not to feed into the negativity because what a person puts out they get back. Learn how not to put power into what others say. Once that power is removed you should have no problem dealing with the many personalities on this planet.
In other words…what they eat will not make you defecate.

Peace