Ego clashes happen with differences in perceptions.
The difference in what we think we are and what others think we are.
The bubbles in the image below are perceptions about the specimen.
Wider the gap between perceptions bubbles, higher are the chances for ego clashes..and if the person is a weak hearted and passive person will definitely end up crying and accepting what others think.
If the person is an agressive person will get into argument/fight with others.
An assertive person will make an attempt to clarify the situation by creating a dialogue.
When there is an overlap in perceptions, there will be little scope for clashes.
Now, You may comment on how to deal with such situations.