I am going for a hair/makeup trial on Wednesday. The lady I'm seeing does everything onsite the day of and basically uses weddings as a side business to being a stylist for another salon the other days of the week. For the trial, I am going to the salon she works for but essentially paying her under the table since the service isn't booked through the salon and it would mess with their books. My question is, I was always told not to tip if the vendor/individual owns their business. What do I do in this case?