For people with yards that are difficult to fence -- such as a yard that is bordered by a stream, or a yard in a community where fences are not allowed -- an invisible fence is an option that many dog owners consider.
 
Invisible fencing (also called a pet fence, a wireless invisible fence, electric invisible fence, or a fenceless boundary) is essentially a wire that is installed around the perimeter of the yard or play area of the pet. 

This wire has a radio signal and the dog wears a receiver collar.  If the dog gets too close to the wire boundary, the collar emits a noise.  If the dog gets closer, or attempts to cross the boundary, the dog receives a shock.  This “shock treatment” trains the animal to stay within its appointed area.  Not all invisible fences use a boundary wire that must be buried.  Some use a radio signal instead. 
 
While invisible fences solve many problems for dog owners, there is a question as to whether or not electric fences are right for dogs.

Here’s a fun way to "teach" your dog a new trick... something I learned from a friend of mine.

Years ago we were visiting a friend who commanded his dog, "Butch, go lay down under the table".  Butch dutifully did as he was told, and I was thoroughly impressed.  "That’s amazing; he knows what a table is!"

Brad asked how to teach a dog to bare his teeth on command.

My very tame American Eskimo, Jersey, (who wouldn't hurt a flea by the way) used to show his teeth. But it was only when our new little puppy, Destin -- and then years later our newest puppy, Tenor -- would get on his nerves.

So out of frustration, Jersey would simply bare his teeth as if to show some sort of dominance to these young pups. It was if he was saying, 'Okay, I've had enough... stay away... I'm done playing.'

It was cute. But it can actually be a scary situation if you don't know you're dog's own limits and how to read a dog's body language.

That said, there are ways that you can teach your dog to 'show teeth'...

I'm beginning to think my dog is smarter than I give him credit for. I think he can spell words!

Here's what I'm talking about...

For once, it's easy to get a dog to do tricks -- on command!

Check out this interactive dog tricks video...

Here's how we taught our dog to sing...

According to the site's author, DoggyMentor.com is a place to "get the knowledge you need to train your dog quickly and easily".