The reason grandchildren and grandparents get along so well is because they have a common "enemy"
What lies at the bottom of the ocean and twitches? A nervous wreck.
When we were together, you always said you'd die for me. Now that we've broke up, I think it's time you kept your promise!
Are you made of beryllium, gold, and titanium? You must be because you are BeAuTi-ful.