[neil]

Lagster,
Let's admit that, that " friend" is Bucket - not the sharpest tool in the chest!

Pull is towards you and Push is away from you. Doesn't matter if I'm behind the wagon Pushing it or behind the collar Pushing it- their both pushes. Since in your example, the horse is in front of the Wagon and essentially bringing the wagon towards the horse -the horse is pulling the wagon. Assuming the horse is facing forward in the same direction as the wagon is moving- then he'll be pushing on the collar while pulling the wagon. If he turns around and grabs the collar with his teeth- then the horse would be pulling the wagon and pulling the collar. It's all in the context of what direction the mover is moving or trying to move an object in relation to the moving entity.

I tried this experiment last night- I took my Jeep and tied a 20 foot rope to the bumper. I then tied the rope around a passed out Bucket (I'm not going into detail how he ended up that way) and I Pushed the Jeep which Pulled Bucket across the road. Here's the good part- I didn't know how the 2nd half of the experiment would work but sure enough when the Jeep went over the edge of the cliff- it Pulled Bucket down with it. Unfortunately, he survived- Hey, I'll try again next week!

Mike O ,
Lets try that again -you push your Jeep,Bucket tied to the rope ,I will PULL my Jeep(using a rope tied to the front hitch tug o war style).We can then tie another rope to Bucket and see who gets the biggest piece(hopefully you).
But i promise I will Pull as hard as I can -by Pushing against the ground.

If I even get a small piece of Bucket you can have it anyway!