When we got back to Basel this morning, we put our bags in the back of a cab and I started to reach up to close the hatchback when the woman (who we at first thought was a man) all of a sudden yelled "NEIN!!!" at the top of her lungs whilst simultaneously giving me the "talk to the hand" gesture in my face. I very slowly stepped away from the car and let her close it. And to think people don't commonly tip here...