&HUMAN moves to layer 0 and DALIA moves to layer 1
@HUMAN faces right AND HUMAN is idle_terrified_loop
@DALIA is showfangs_threatening and DALIA faces left AND HUMAN is showfangs_frightened
@DALIA is biteneck_give_aggressive_rear and DALIA faces right AND HUMAN is biteneck_receive_terrified
This should work?