Hi,Saw your message on the discussion board. My guess is that your regular customers aren't a problem. With others you can tell them up front, even over the phone, that the appointment is for one hour. Another possibility would be for you state that extended sessions are available, at a higher price.Hope this is helpful. I would be interested in the possiblity of an appointment please let me know via e-mail how to contact you. Regards, Vic