Face it. Even the friskiest Fido eventually gets bored doing those leg lifts in the same old neighborhood spots. And the Great Dane becomes mundane when marking the same trees day in, day out. The leash, uh, least one can do is break the monotony with a pilgrimage to every mutt's mecca. There's an hour or so drive involved, but that just gives the dog the necessary time to muster up that once-in-a-lifetime leak. Pack him in the car and head east on Interstate 10 to Beaumont; take the downtown exit. Lurking around the corner at the Fire Museum of Texas is every dog's dream. It came all the way from Disneyland, where it was crafted to promote the rerelease of the 101 Dalmatians video. The fiberglass structure has a reinforced interior of 1,000 feet of steel and weighs 4,500 pounds. And the shape? You guessed it. A 24-foot-tall fire hydrant, white with dalmatian dots. Nearly three stories of sheer canine excitement.