We have a jewelry store in town that is by appointment only. During the day there's always a high end car parked at the back of the store but you never see anyone in there. When my buddy was getting ready to propose he tried calling to get an appointment and it went straight to voicemail with a message that said private clients only and then beeped. He left a message but never heard back. I've never met anyone who has seen anyone go in or come out of that place.