Employees must not perform any other activity in an operating time may be the cause of an accident or dangerous to themselves or others, such as banning tobacco smoking in the Fiery khuek prank or joking, etc.
Employees must not do any other activity during the time of operation. Which may be the cause of the accident. Or harm to self or others, such as smoking in smoking. Prank prank or tease so.
Staff must not do other activities during working. One may be the cause of the accident. Or a danger to themselves or others, such as smokers smoke, a prank prank or kid, etc.