I'm thinking of getting a leash and taking my Maine Coon Oliver for walks. Firstly, what type of leash would be best and secondly, what's the best way to get him started? He's only seen the outside world a couple of times, for a few seconds, when he's darted out between my legs after I've opened the door for some reason. That suggests he wants to explore so hopefully he will take to a leash and benefit from some extra fun. Thanks.