No diving, no catching, some stepping on early......and the area is rarely small or familiar. Using wide open terrain makes you the only focus. In addition, most of the time, the pup is very engaged.....enough so as to seek more fun together. When walking on lead there are other things to pay attention to as I am always carrying a bumper and/or playing a game. The pup's mind is far removed from chewing on a lead. As far as in the house, if not directly being supervised a young pup is in his/her crate (den). This is a YouTube video of my last pup at five months old. I decided to train with a different program which was quite a change from what had been done before. The initial difference was in early use of the sit command. The only time sit is used is when the dog is sitting (doing the right thing). My initial struggle was accepting that repeating was not nagging because she is already doing what is supposed to be done - re-enforcing. Later the collar is used the same way (very low levels). To some extent, reaching a balance on this required time. The next time around (if there is another pup), the process will be much more seamless and comfortable.