Puppy has seperation anxiety because he has no strong pack leader.
He bounces a lot because is confused and has no leader.
He chews things because is stressed when the alpha male i.e DH leaves the house because the Alpha female i.e me is weak.
I am clueless because I won't practise pack theory even though Google says it's true 
I am fairly certain that Google also says Elvis is still alive, America blew up the twin towers themselves and Rihanna is sucessful because she worships Satan.