What if, at your local pet-supply store, you could purchase a dog-training tool that would make your dog weaker, klutzier, and less intelligent? And what if this tool increased your dog’s frustration and fearfulness about the world and made him or her less likely to bond with you? Would you buy it? Of course not! Yet, millions of these “tools” are sold every year to unsuspecting American dog lovers who want the absolute best for their dogs. The tool is a “crate,” which is just a euphemism for a cage. In fact, dog crates are substantially smaller than the cages that are used to house dogs in laboratories.