Any ideas what my puppy is mixed with? - Page 2

Heinz 57.  cute!  keep that kid away from the dog until he learns good manners around the dog.   don't let the dog be abused by a child, he'll grow up avoiding or even fearful around children.

http://www.englishshepherddogs.com/resources.html
http://www.englishshepherd.org/

They look and work a bit different from border collies or aussies. Not as intence or as obsessive. I've seen a bunch doing agility and sheep herding here in the states.
Fry

The first thing I thought when I looked at his pictures, before reading your post was Aussie x Bernese.  Though normally Bernese are supposed to be large, I have seen some small ones.  
Many Aussies I know are stand-offish with anyone outside their immediate family, they are exceptionally loyal to their choosen people.  Without seeing his shy behavior in person, I'm inclined to say it may just be his genetics.  

Dragonfry has a good point too, though, he could very well be English Shepherd.  

I will say, for being only 7 months old, your pup looks a bit pudgy,  he should be a bit leaner at this age to avoid future joint and other health issues.  

My guess, border collie, australian shepherd and black lab.

What Molly (Eichenluft) said. Please pay attention to that.

Didn't the rescue want to see this kid before they gave you the dog? Frankly, I've never sold dogs to people with kids under 4 years unless they were experienced dog owners and then I have to see the children first. Dear, this is a living animal, not some sort of stuffed toy that  you should allow your 3 year old to "be mean to". Stop that immediately or, better yet,  return the dog to the rescue. This is an accident about to happen. Dogs should not be expected to endure the abuse of kids and kids should never be allowed to abuse dogs. My mother always  told told me - what you do to the dog, I do to you. I soon learned what hurt. You have a fearful dog there, don't push the envelope.

He's a really pretty little guy, he probably has a number of breeds in his pedigree, it doesn't really matter, his pedigree should be the least of your concerns right now.What matters is this dog is probably not a dog for an inexperience dog owner. Please don't let your child be mean to him. It will not only harm the dog, it will teach your little one that it's OK to be cruel to animals. Maybe it's not the right time for you to get a dog?

Good luck..............

Your story reminded me of my dog ​​who was very shy when he was a puppy. I have tried many types of training and advice I've heard from others I've tried everything I knew, my puppy after all that was shy. Of course, after a while I gave up when I saw that nothing changed. I do not want to complain because I have no reason why I love my dog I love it. on the other side after all, I learned that there are often Mastiff behavior as a puppy

Mastiff Care Information

In order to ensure a happy, healthy, Mastiff, you must first understand a bit about the origin of the breed. Mastiffs original jobs involved guarding of kings and other dignitaries. Some, like the Bull Mastiff, fought bulls for the entertainment of others. Therefore, although Mastiffs make excellent family pets, they can be cautious of strangers, and will need the family to first "introduce" the stranger. Mastiffs require a regular daily walk, not more than the average dog, due to a low amount of energy, and mellow personalities. In fact, often times, you must convince your Mastiff that it's exercise time because they can become quite the couch patato!

 

Cute puppy.  I second the presence of Bernese MD in him.  Please discipline your boy and don't allow him to manhandle the puppy.....just an accident waiting to happen, in addition to the fact that the kid will grow up under the impression that it is okay to be nasty toward animals.

What a pretty dog! And you say he is a love bug to you & your son? Of everyone is correct about teaching your son to respect the dog, but returning him to the shelter? No, I think for the dog that would be awful! Losing the folks that he's grown attached to...poor thing, he'd probably rather bear the abuse! But don't allow it to happen. Make it work  for all of your sakes! There was an interesting video posted here about reading your dog. Perhaps this would benefit you to see it. Keep learning, & kudos for giving a shelter dog a home! jackie harris