I'm imagining my 42kg, built like a brick shithouse goldador doing that, he would break my back lol. That's awesome, dogs are awesome, once you have your dogs trust you can do anything with them. I have 2 and whenever the one gets injured or hurt he comes straight to me with either his paw in the air(if he's trodden on a thorn or similar) out just won't leave my side until I find out what's wrong with him and fix it. I wouldn't want to live without a dog in all honesty.