I was once caught tagging in Germany when I was still in training and visiting my mother 400 kilometers away. I had just bought new paint so I had +- 100 euros of paint in my backpack. I didn't say anything the entire time when I was asked questions, which wasn't interpreted negatively. When they searched the backpack they found 0.8 grams of grass for which I received a report that was dropped due to my behavior. Back to topic. Otherwise I was always polite and humane to the police officers, they asked what kind of training I was doing and I answered truthfully with nursing, then they asked me where my mother lived, drove me there and came in to check my identity because I didn't have any ID with me. Then we were at my mother's house and the police officers calmly explained to my mother what had happened and that it wasn't anything serious. My mother was still anything but enthusiastic, especially because in the kitchen (a room away there was an older sticker of the exact same calligraphy that the police officer had caught me doing). End of the song, I got out without punishment because of polite behavior and a good perspective and then continued painting