No matter what the situation is or how bad you are pushed, learn to control your temper. Some people when angry or provoked, will let out secrets because they want to get even or say very horrible things about the person they are upset with.
When they are calm, they feel terrible and want to apologise for all the wrong things they have said. A lot of times, saying sorry does not fix it. Why not just learn to speak softly. Better still, smile and walk away if you know you will be unable to stay calm. The tongue can stir up hate or love. Which will you choose?