[Professor S]

For the record, you are allowed to refuse people service as a private business, but you can't do so for the reason of race or gender. Example: You can refuse service to a black person if they are being a jerk or if you just don't like them, but you can't refuse service for the sole reason of their color. Some have tried to refuse service to a race and claimed its for other reasons, but the courts look at a pattern of behavior to make their determinations.