Then Moses heard the people weep throughout their families, every man in the door of his tent: and the anger of the Lord was kindled greatly; Moses also was displeased. (Numbers 11:10)
The man of the East makes it a habit to inform the world at large of his grief and mourning. In this instance there is every appearance of a prearranged plan for concerted action, each family crying out aloud, and at the door of their tent.