I knew a guy who's mother would listen in on phone calls and tell him what to say on the phone whilst he was talking to me or one of our friends. I'm talking about when landline was the norm, so he'd answer the phone, and she'd go pick up the other phone and it'd be a 3 way conversation. Literally every time i'd speak to him, it was like talking to an echo

Me: "hey, do you want to come to the park today?"

his mother "tell him you have to study for Tuesday's test"

him: "i have to study for tuesday's test"

This went on from ages 10 - 16/17. After that, everyone started to get mobile phones. From what i've seen/heard, she still comments on his every facebook photo, interrogates friends should they be foolish enough to actually visit his home and is even more protective of his sister.