Shadow is approx. 5 y/o neutered Jack Russell terror... so you can imagine some behavioral issues come with that, hyperactive, barky, aggressive to mail-carrier, etc. I have had him for about 3 years and he has never had issues with being crated, except for the occasional barking spree, which his various...

Mentholated Vicks Vapor Rub works much better than Bitter Apple to discourage chewing! Nasty stuff. Crate training: http://www.clickersolutions.com/articles/spt/SPT_Crate_Training_Info.htm http://www.wonderpuppy.net/canwehelp/crate.htm