Vladik

You were on a train and were going to the sea with your uncle, and when you got off the bus with your uncle with your things, you saw stalls with toys, the sea was huge and clean, sparkling, and the sand was soft, lots of people, a fountain, hot dogs, and kvass. You loved kvass and asked your uncle for some. He led you to a barrel of kvass. She poured it into a plastic cup for you, and you took only the kvass. Someone bumped into you from behind, and you almost spilled some kvass. You turned around and saw some kind of pioneer boy.