I was at Porte de Clignancourt market when I saw a woman drop one of her black leather gloves as she slowly wandered down through the stalls. She was not aware of this. Having spotted it I quickly moved to pick it up. Rather than run after her and give it back to her, I just stood there and watched as she disappeared into the crowd.
Over the ensuing months I took it upon myself to take advantage of distracted Parisiennes in cafés around the city. On the rare occasions that opportunity presented itself with a pair of black gloves being left on a chair or table nearby where I happened to be sitting I would discretely take just one of the gloves and quietly leave.
I did this three times.