Is there any doubt this guy will love being a Grandpa? When he learns the news that a baby's coming, he breaks down in tears of joy.

Grandparents play a very important role in a child's life. They are an extra source of love, wisdom and, of course, fun. When mom says, "No," ask Grandpa.

Click here for 15 fun things to do with your grandchildren.

Click here for 5 ways to show love to grandparents.