So, she was one of 5 upper sixths just resitting unit 1 the rest were either resitting 1+2 or were lower sixths sitting both. She and the other 4 were allowed to leave after there paper was finished but asked to be very quiet and not scrape their chairs etc
Any other 18yr old could probably manage this. Not my oaf of a girl. She manages the chair bit then trips up, barrels into the chair she's just silently put back then in an attempt to right herself falls over the table 
This is the girl who has never successfully managed the stairs at home without tripping up them and who has to stare at the ground when walking so she doesn't fall over 