I think it is great to go out and play with the dog during the day, but if you want to try something more impressive, do it at night. Try throwing a Frisbee at night and see how well that dog can see. I have a German Shepherd and his new Kong Frisbee’s (They call them Kong Flyers) came in the mail. He wanted to play so bad, I went out on the back porch and threw the Frisbee. He caught that in pitch dark, just like there was daylight. Now consider this dog as a predator; he can come at you, at night, at a full run and he is silent, you do not even hear him coming. Now, sit back and think about the abilities these dogs have, that we are not even aware of.