Out at the training yard we used to test new "puzzles". It was interesting to see how different breeds reacted,plus how different individuals within the same breed responded. I remember that our Rottweiler and Airedale both picked the puzzle up and tried to shake the treats out. The poodles both (separately) stared at the puzzle and then stared at my daughter. You know the STARE when they are saying "Hey, Human fix this NOW!" My daughter just stood there, and then her arms got pawed. We laughed. When we retested the next day, the poodles quickly got all the treats. I have to say that they looked rather disgusted, but gobbled everything up.