Carl thinks himself as being in top shape so isnt overly con

Carl thinks himself as being in top shape so isnt overly concerned about the school physical at first. But when Cassy turns up he starts to feel a little unnerved. He knows she doesnt like him, so why does she seem to be so pleased to be there! Stood in just this underpants Carl doesnt yet realise that hes being tricked and this is going to be one physical exam that hed wish he hadnt agreed to.