Dangerous games: teenagers in Colpino made a dangerous adventure A group of schoolchildren ran on the roofs of residential buildings, then threw down an attic door. She broke a window of an apartment on the second floor and almost fell on passers-by. For teenagers, it's a way to tickle their nerves and impress friends, but for others it's a real threat to life and safety. This incident again makes us think of ways to avoid such incidents.