Dogs today are being trained to be service dogs. Training a dog takes at least one to two years. Training a dog means they must be able to behave in public areas without causing any problems, the second thing a dog must be able to do, is to act appropriately with whatever disability the owner may have. Some people say that dogs can sense when their owner is about to have a seizure, but others say dogs can sense it but their instincts kick in and they have the need to protect their owner. The only