Happen Between Two People

grandparent

is made to feel old not by one's grandchildren, but by the knowledge that one is married to a grandmother.

Grandchildren don't make a man feel old... it's the knowledge that he's married to a grandmother.

is a person who gets along so well with their grandchildren because they have a common enemy.

The reason grandparents and grandchildren get along so well is that they have a common enemy. - Sam Levenson

is old on the outside but young on the inside.

old on the outside but young on the inside.

is a group which, once you're a member of, suddenly seems so young.

It's amazing how grandparents seem so young once you become one.

is there to help the child get into mischief they haven't thought of yet.

Grandparents are there to help the child get into mischief they haven't thought of yet.

is another thing that is "so simple a child can operate".

Another thing "so simple a child can operate" is a grandparent.

is the person who thinks your children are wonderful even though they're sure you're not raising them right.