I did! I bought Marc Jacobs Bruna and I carried it for a week until the leather started to fade, so I returned it. The good thing about living in Germany is you can return the things you have purchased within 2 weeks with or without a defect.
Only if it has a defect. I had to do this recently with my Marc by Marc Jacobs laptop bag that I bought in September. The bag ripped where one of the straps attached to the bag, so I went to Bloomies and exchanged it for a new one.