tonight when we got home Mercedes ran for the backyard.. lol... So we knew she had done something wrong. We came in and the house was a mess cushions from the couch strewn everywhere also fluff from the pillows that were ripped everywhere... Soda cracker box torn up.. and on and on... We just went out to dinner for like 3 hrs lol... anyways what I'm getting at is she ran to the door cuz she knew she had done something bad or because the last time she did it she got in trouble. I dunno??? I think when she does soemthing she knows she's being bad.... This is a hard question... Like the one dogs can only see black and white is this true???