overheard in my classroom 3

me: what's your grandmother's phone number?
J: i don't know.
me: well, can you tell her to call me?
J: she doesn't know your number.
me: well, it's the school's number. or she can email me.
J: MISS ALBERTS! she doesn't use email. she's 46!

i died. then i pondered which was more startling: that she thought 46 was too old to be emailing or that her grandmother was 46 years old. gosh.