Wylie tried to bite the crate and jumped up and kept hitting his head on the top when we got him into the crate. this was with the door open. With it closed he tried to bite the crate so much that he actually got his jaw caught on the wires as he had bent them with his biting. I had to extract the wire very carefully. This was while we were still home and I spoke to our vet who said not to even try leaving him in a crate when not home.
We tried confining him to the kitchen but he jumped one baby gate and when we put one on top of the other he jumped until he toppled them and got out anyway.
He follows at home and the first month or so would urinate when we left, chew the sofa cushions, whine, chase his tail etc. We came home to a mess every night. We followed the advice of the vet with not making a fuss when leaving or coming home, leaving the kong and lots of chew toys, the radio on, a light on now that it is darker at dusk etc and slowly he is ok with us going to work.
He actually waits for his kong and no longer bolts to the window as soon as we leave. Only when the routine changes does he get panicky. Even if my dh works later than normal he will start to pace and whine. The vet also said since he is a shelter dog he was paper trained and it would be hard to break. He said we should work first on the SA.