Bless your grandma-in-law.

I was lucky enough to remember my great-grandfather, who was about 90 years
older than me.  He actually lied about his age and marital status -twice- to enlist in
the army for WWI.  He was in his mid-thirties in 1917, with two children.

He enjoyed the show Star Trek but didn't like having a telephone, the ringing annoyed him.