I went out for a break for a walk. There is a children’s playground near the office.
Beyond the site goes along the sidewalk of the alkas, goes an anti-submarine zigzag and places it seems that it is about to turn (but it does not fall).
On the site, two boys with smurfs (up to 10 years old): one takes off, and the second, rolling the smartphone in one direction to the other, controls the alkas. Funny...!