Emergency in Family or Household. If a Teacher’s absence shall be due to an emergency in the family or in a Teacher’s household (heretofore in this ARTICLE defined), the BOARD shall grant a leave of absence with full pay for a maximum of two (2) full days in any one (1) In-School Work Year to enable the Teacher to make arrangements for the essential security of family and household. Additional leave (whether in connection with the emergency which is the subject of the first sentence above or in connection with any other such emergency which occurs during the In-School Work Year in question) may be granted at the discretion of the Superintendent and shall be with full pay less the amount of prevailing substitute Teacher rate of pay; provided, however, that where, in the sole discretion of the superintendent, sufficient extenuating circumstances exist, such additional leave shall be with full pay without such deductions.