Can you post the slogan "Spitting blood to clear the warehouse, tears for sale" in front of my clothing wholesale store? None of the businesses around have done this.

Yes, search online. Many shops are using such advertisements, even more malicious than this advertisement.

The purpose of using this advertising language is to attract customers' attention. If you use ordinary advertising language, you may not be able to stimulate your eyes, so you will not be able to achieve the purpose of promotion.

If your mother insists on not using such a slogan, you can make a comparison, that is, not using such a slogan at first, and using an exaggerated slogan in a few days, you will have the answer.