This is only done however when a person is consistently doing something very wrong within society and causing a lot of harm to others. If and when a Witch does zap someone, they do so with the full knowledge that it will eventually return to them and there will be a price to pay according to the Law of Three. There are times when we simply must make a personal sacrifice for the good of the whole and shoulder this weight. When confronted with this type of situation, I prefer to bring this person to the attention of the Goddess, asking her that justice be done according to her will. In this way I am not focusing negative energy towards the individual and therefore am less likely to suffer karmic reprocussions.
Witches wear clothing and robes of every color.
Black is the combination of all colors and all vibrational rates of light on the material plane. It is known that black is a very good conductor of energy, therefore wearing black simply helps Witches absorb natural energy to increase the power of their thought forms. In the old world, especially within the Celtic tribes, the day followed an entirely different schedule than it does in modern times. The new day for them actually began at sunset. This is also why most observances of holidays were celebrated on the evening before the actual calendar day.