If that is the case with your son, then one quick way to deal with this is to make sure she gives your son a specific activity to do (one that he likes or will actually do), like clearing off the board, bringing something to the office, etc.
Haddii ilmahaagu fulay yahay, taasi waxaa ugu wacan sababtoo ah markuu yaraa aad baad uga celin jirtay inuu wax sameeyo adigoo ka welwelayay in wax ku dhacaan (tusaale, hadduu banaanka u baxo amaa la dilaa, haduu jaranjarta fuulo amuu soo dhacaa, kubad haduu ciyaaro amuu jabaa)