I think my husband is very high temper person. He just hit the car at home and complaint a lot toward my dad. How should I do?

You should talk things out with him and get to know what is wrong, where is the problem. You should also advice him to go on temper management courses. http://scc.sg/eng/index.php/angermanagement/ Should his behaviour turn abusive and threatening, do not be afraid to speak up. Do not suffer in silence. Help is available at: http://www.aware.org.sg/dealing-with-family-violence/