for the glass fragment to strike her, the glass has to be smash at a precise speed and precise angle with a precise orientation, and possibly if the glass has any pre-existing defect. 公仔箱論壇+ l7 Y$ H8 v/ i# n; N, E! I
公仔箱論壇; P0 `5 U! R; ~* u5 K/ S7 i# v
the possibiolity is endless which will make it impossible to repeat the experiment. |