Entrance to the Testing Labs                           -      N      - 
(-------------------------------------------------)     W <---(M)---> -
                                                        -      S      -

The door to the south has no handle on it, which leads you to believe
that it is used for an exit rather than entrance.  The floor is sticky with
dried blood, which trails under the door.  A sign on the door reads
"Emergency Exit Only".  
Some drops of blood are on the ground.
     The sliced off tail of a lab rat is lying here.
A long suffering, rather abused looking lab rat is attacking anything that moves.
A long suffering, rather abused looking lab rat is attacking anything that moves.
A lab rat begins attacking you!
A lab rat is in perfect health.