Please see photos below of the damage caused to my bunny runs ...

Both hutches had carpet covering the first floor mesh part - one had the carpet ripped out from underneath a heavyweight concrete block, the other was ripped from the nails.  The black waterproof cover at the end of one of the runs was ripped from the nails, along with the mesh panel, and you can see how damaged the mesh was to the other run.  I know this was, fortunately, a very rare occurrence but it shows what is possible ..... one bunny was attacked and killed and the other three died of shock :-(