Every now and then, I hear of a customer being "banned" from a specific club.
What actions get a customer banned? Fighting? Selling drugs? Fondling the dancers (when rules to the contrary are clearly posted)?
Is banning legal, if it is not based on a protected status (e.g., based on race).
How is a ban enforced? Does the club post the name of all banned customers or photos of banned customers--- it seems like an enforcement nightmare unless the manager who would recognized a banned customer works every shift.


Banning a customer can be perfectly legal depending on the motivation. If the motivation for the ban did not involve discrimination against a legally protected class, it would be perfectly legal.
I suspect that some clubs keep a list of customers and strippers they have banned. These lists could be part of their defense if law enforcement seeks to fine a club or force it to close for violations of public decency laws. The club could argue that, although they may have failed to prevent all illegal activity, they do their best - and then produce lists of banned customers and strippers as evidence.