I am torn actually unsure on what would be morally correct:
1. I, as an individual, am allowed to deny entry to persons I dislike from my private property.
2. I, as an individual, am allowed to deny entry to persons affiliated with a business I dislike from my private property.
3. I, as a business owner (eg: a restaurant), am allowed to deny entry to persons I dislike (eg: a previous patron who was violent) from my business.
4. I, as a business owner (eg: a restaurant), should I not be allowed to deny entry to persons affiliated with a business I dislike (eg: the next door restaurant employee who is copying my menu) from my business?