Diesel will finally walk on his leash a bit, but I'm so paranoid to take him out in the heat. Our temps have been around 90 but the humidity is making it so much worse. Is walking him just down the end of the block which isn't that far enough to get him out and get him used to walking a bit more? It's been so long since we've actually had a puppy and when we got our Dalmatian it was almost winter so I'm not sure of how much walking in this type of weather should be done, I don't want anything to happen to him.