Inc. Many dogs whine when left alone.
Puppies often whine and cry when separated from their owners.
The puppy is afraid he is being abandoned by his pack and is sounding the alarm so that he can be rescued. Often what starts out as a demand for something soon becomes a habit. To prevent this annoying habit, teach your dog to accept short periods of confinement before leaving him alone for long periods of time. Spend time with your dog in the area where he is left and show him that this is a fun place to be. If he starts to whine or cry when you leave, don't rush back to let him out or reassure him.