This is terrifying! Enough to give any parent...anyone...palpitations of the heart!
I remember once my sister-in-law in France had her neighbor knock on the door to tell her that her son was on the roof. She lives in a two-story home and that was one of the scariest moments of her life. Imagine you seeing your child walking on a ledge five floors up! It happened to a family while on vacation. Warning, there is a point in the video where the child almost slips and falls.
Thank goodness someone was able to bring the little one to safety and no one was hurt!