I'm bumping up this thread for myself and other newer members to read & keep current the information on NILIF.
I agree with you Debbie and Micheal, I too think of it as a situation for a dog, more than a pup. I consider their job as an adult is to carry out the daily commands that I give them.
After all, we love them, feed them, look after all their health and medical needs, care for their creative minds with classes, training, holidays and all manor of joyus life adventures. Expecting a dog to obey any sensible command that he is mentally & physically capable of doing, to me, isn't asking to much of him.
This is a good link explaining it I think:
http://k9deb.com/nilif.htm