In a certain area, wasting food and engaging in insensitive acts related to food are considered taboo. In some cases, a baseball player may intentionally break this taboo in order to evoke maximum remorse in the other person, such as when a baseball player reveals a secret about his father to a friend or when an affair is exposed.
As an alternative to direct domestic violence, you convey the message, similar to that conveyed by this food, "I have the right to take your life or play with it."
Never do it in the real world.
Minmei Publishing. "A monster licking rock salt or soy sauce container."