Old couple is sitting on the front porch

Old couple is sitting on the front porch. Grandpa is sitting on the bench reading the newspaper, grandma is in a rocking chair knitting. They have been together since prom night. *Grandma seems angry, gets up from the chair goes to grandpa and slaps him so hard he drops the newspaper, his glasses fall on the porch breaking the lens in it.*

Grandpa seems more offended than angry and ask grandma:

*\- Why did you do this?*

grandma replies:

*\- Because throughout the 50 years of our marriage sex with you was awful!*

Grandpa picks up the newspaper from the ground, fumbles with his lens. After about a minute, *grandpa gets off the bench walks to grandma and kicks out the rocking chair of grandma.* Grandma falls into the flowerbed, sweeps the dirt from her hair and asks grandpa:

*\- Are you out of your mind old fart? What did you this for?*

grandpa replies:

*\- How do you know what good sex is?!*