still dont understand the whip and chair theory though! I agree with winny that you should try going out and coming back in and keep extending the time that you go out for from a few minutes, building him up. Not that I dont agree with cages, but if he is getting so upset, that may just make him worse. If you do get one, try putting him in it when you are there with a few treats, and he may get used to it - if you leave the cage open, he may just go in of his own accord, as a lot of dogs like to think it is 'their place' for a bit of peace and quiet. One of my absolutely hates being left on her own and literally eats her way through the house, but is fine when she has her 'sister' with her.