In a previous scene, Maria was considering participating in a clinical study for her fairy disease. Well, this is it, and apparently her family is nosy enough to know about it.
I like pointing out to my little cousins that I was born before cell phones. Then they think I am centuries old.
Last time kids knocked here to use the phone, I had my dial phone plugged in. They were very confused at first and I had to show them how it worked.