In California, along the alleys of the dark streets of a remote area, many crimes have been committed. The police officers paraded the area to be sure that there weren't any suspicious things going on before they moved in another direction. They had chased a bunch of criminals from the center of the city to this abandoned alley that had uncompleted buildings around it.
A bunch of thieves who hid behind a dumpster and were not detected by the police officers slowly and steadily came out one after the other. After the first person came out, he went on a lookout before he declared, "Coast is clear".
The other thieves nodded at him and brought out the heavy bags that they had used to rob the bank. There were about three bags and there were 5 thieves, including the one who declared that the coast was clear.