10. Pair of edible Depends found on bedroom floor.
9. Lately, at night, they put their teeth in the same glass.
8. Grandpa grabs his crotch and complains loudly of denture-burn."
7. Granny found cuffed to her walker.
6. Not only do you hear the bed squeaking, but also joints.
5. Grandma regularly looks at Grandpa's crotch and claps twice.
4. Your "Grandma" is Anna Nicole Smith.
3. You've just seen the photos in the "Beaver Hunt" section of the May issue of Hustler.
2. Grandmother starts baking Viagra-chip cookies.
And the Number One Sign Your Grandparents are still sexually active.....
1. Kraft-matic adjustable bed set for "doggy style."