Do you believe in healthy fear?

Mary
Do you feel like scare tactics are cruel or necessary? For example, fear of your father or mother, fear of the law. Do you feel that fear corresponds healthily with respect of an object or being? For example, I am afraid of my father because I will be disciplined. I respect my father and would not invoke negative reactions from him out of respect, and fear of consequence. 
Or do you feel like fear and respect can be exclusive and that respect can be taught without the use of fear? Do you feel that scare tactics are detrimental to society, and have actually caused more harm than reward? 
I'm curious to know how people feel about this topic. 

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