On hearing that her elderly grandfather had died, Jenny went straight to visit her grandmother.
When she asked how her grandpa had died, her grandma explained, not holding back anything of course, "He had a heart attack during sex, Sunday morning!"
Horrified, Jenny suggested that screwing at the age of 94 was surely asking for trouble!
"Oh no," her grandma replied. "We had sex every Sunday morning in time with the church bells!"