Matthew 5:21-22 KJV
21 Ye have heard that it was said by them of old time, Thou shalt not kill; and whosoever shall kill shall be in danger of the judgment: 22 But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.
Most people will agree that a murderer needs to go before the judge for punishment. However, Christ goes further. The judgement is required before murder even happens.
We know that evil things begin in the heart,
Matthew 15:19 KJV
For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies:
Why not stop it there? If you let anger fester in the heart or if you let the thought of someone being a food stew, evil will ensue. Take care of the issue before it goes that far.