Assuming we buy a house here I'm going to get myself another great dane from the same breeder my first one came from. My original Dane was 80Kgs and when I came home he would greet me by standing up and putting his paws on my shoulders and looking down into my face. Fortunately he was a big softie because I couldn't have stopped him if he wanted to go somewhere, so the responsibility thing seems like a damned good idea to me.

I don't see any of these proposals as a bad thing. I certainly wouldn't have trouble complying. I am just relieved that there's no obligatory muzzle for big dogs as my dogs have never needed one, but having a muzzled dog makes them unhappy and susceptible to attack by unmuzzled dogs.