1. If people who run restaurants eat in other people's restaurants, they may be mistaken for asking for information or digging corners, causing hostility or vigilance. For example, he may be suspected of stealing recipes, attracting tourists, digging employees, comparing prices and so on. This will destroy the harmonious relationship between peers and even lead to fighting or revenge.

2. If people who open restaurants eat in other people's restaurants, they may be critical or dissatisfied with each other's dishes or services because of their professional vision. For example, he may think that the other person's food is not exquisite, unsanitary, not fresh and so on. This will affect your appetite and mood, and even offend the other chef or waiter.