Middle Sister had two friends sleep over last night. (Amazingly, they kept their noise away from where OTHER people were sleeping--thanks, girls!)
Their parents had asked them to call when they woke up, to arrange for their return home today. So one friend just asked me if she could use the phone.
Then I heard them in the kitchen:
"Where's the phone?"
"On the wall."
"Oh...there's no button here. How does this work?"
We have apparently progressed to the point where kids are no longer acquainted with Phones With Cords. (And I thought it was bad enough that I had to show them how to work the ice-cube trays earlier this morning!)