I dunno...

I would NEVER allow either of my dogs to plow me over; any dog, really. A lot of it is simply your body language, and whether or not you tolerate the jumping. Some people actually encourage their dog to jump up without even realizing it - just by their body language, or the tone of their voice. It's basic manners, that should be taught from day one. I used to walk a 100+ lb Rottie when I was 12 years old... he wouldn't dare plow me over.