If dogs were teachers ...

Remember, if dogs were teachers you would learn things like:

• When loved ones come home, always run to greet them.
• Never pass up the opportunity to go for a joyride.
• Allow the experience of fresh air and the wind in your face to be pure ecstasy.
• Take naps.
• Stretch before rising.
• Run, romp, and play daily.
• Thrive on attention and let people touch you.
• Avoid biting when a simple growl will do.
• On warm days, stop to lie on your back on the grass.
• On hot days, drink lots of water and lie under a shady tree.
• When you're happy, dance around and wag your entire body.
• Delight in the simple joy of a long walk.
• Eat with gusto and enthusiasm. Stop when you have had enough.
• Be loyal.
• Never pretend to be something you're not.
• If what you want lies buried, dig until you find it.
• Be always grateful for each new day.
• When someone is having a bad day, be silent, sit close by and nuzzlethem gently.

The last bullet reminds me of a passage from the book Tara gave me by John Grogan, author of Marley and Me. Here is one of the passages. I was especially touched by the segment about his wife's miscarriage. You'll see what I mean when you read it.

By: John Grogan / Inquirer Columnist

In the gray of dawn, I found the shovel in the garage and walked down the hill to where the lawn meets the woods. There, beneath a wild cherry tree, I began to dig.

The earth was loose and blessedly unfrozen, and the work went fast. It was odd being out in the backyard without Marley, the Labrador retriever who for 13 years made it his business to be tight by my side for every excursion out the door, whether to pick a tomato, pull a weed, or fetch the mail. And now here I was alone, digging him this hole.

"There will never be another dog like Marley," my father said when I told him the news, that I finally had to put the old guy down. It was as close to a compliment as our pet ever received.No one ever called him a great dog - or even a good dog. He was as wild as a banshee and as strong as a bull. He crashed joyously through life with a gusto most often associated with natural disasters.

He's the only dog I've ever known to get expelled from obedience school.

Marley was a chewer of couches, a slasher of screens, a slinger of drool, a tipper of trash cans. He was so big he could eat off the kitchen table with all four paws planted on the floor - and did so whenever we weren't looking.

Marley shredded more mattresses and dug through more drywall than I care to remember, almost always out of sheer terror brought on by his mortal enemy, thunder.

Cute but dumb

He was a majestic animal, nearly 100 pounds of quivering muscle wrapped in a luxurious fur coat the color of straw. As for brains, let me just say he chased his tail till the day he died, apparently convinced he was on the verge of a major canine breakthrough.

That tail could clear a coffee table in one swipe. We lost track of the things he swallowed, including my wife's gold necklace, which we eventually recovered, shinier than ever. We took him with us once to a chi-chi outdoor caf and tied him to the heavy wrought-iron table. Big mistake. Marley spotted a cute poodle and off he bounded, table in tow.

But his heart was pure.

When I brought my wife home from the doctor after our first pregnancy ended in a miscarriage, that wild beast gently rested his blocky head in her lap and just whimpered. And when babies finally arrived, he somehow understood they were something special and let them climb all over him, tugging his ears and pulling out little fistfuls of fur. One day when a stranger tried to hold one of the children, our jolly giant showed a ferocity we never imagined was inside him.

As the years passed, Marley mellowed, and sleeping became his favorite pastime. By the end, his hearing was shot, his teeth were gone, his hips so riddled with arthritis he barely could stand. Despite the infirmities, he greeted each day with the mischievous glee that was his hallmark. Just days before his death, I caught him with his head stuck in the garbage pail.

Life lessons learned

A person can learn a lot from a dog, even a loopy one like ours.Marley taught me about living each day with unbridled exuberance and joy, about seizing the moment and following your heart. He taught me to appreciate the simple things - a walk in the woods, a fresh snowfall, a nap in a shaft of winter.

Mostly, he taught me about friendship and selflessness and, above all else, unwavering loyalty.When his time came last week, I knelt beside him on the floor of the animal hospital, rubbing his gray snout as the veterinarian discussed cremation with me. No, I told her, I would be taking him home with me.

The next morning, our family would stand over the hole I had dug and say goodbye. The kids would tuck drawings in beside him. My wife would speak for us all when she'd say: "God, I'm going to miss that big, dumb lug."

But now I had a few minutes with him before the doctor returned. I thought back over his 13 years - the destroyed furniture and goofy antics; the sloppy kisses and utter devotion. All in all, not a bad run. I didn't want him to leave this world believing all his bad press. I rested my forehead against his and said: "Marley, you are a great dog."