I have been going to the same local jewelry store(not a chain) for years and the same sales associate has helped me with my purchases each time. Today she was busy with another customer so another SA helped me and I ended up purchasing something. So it made me wonder if they work on commission. If so should I have waited for her to finish with the other customers and then had her help me? I am feeling bad because she has always been a good SA to me and I hope I didn''t give someone else what maybe should have been her earnings.