Why are topical anesthetic for hood piercing "unethical"?

Hmmm...: If someone desires a hood piercing and elects to have some sort of topical anesthesia then i don't believe it is unethical. Topical anesthesia can work, but in the case of a hood piercing (i assume clitoral hood?) it may not be as effective as injected anesthesia. If the person doing the piercing denies you adequate anesthesia then i would simply go elsewhere. A challenging question.