Recently we were watching a movie with my boys in which a person is having a conversation on a telephone in a phone booth.
"You see, boys?" we explained. "That's how we used to have to make phone calls away from home before there were cell phones."
"Huh..." my 12-year-old mused. "Did you have to wait in a line sometimes?"
"Well, yeah," I recollected.
"Did you ever use a phone booth, Mom?"
"Uh-huh," I answered.
"You're that old?" he marveled.