Wave Back At John!

I've noticed something weird about Messenger app today. Right at the moment when I meant to shut my phone, after watching YouTube videos, a notification pops up that one of my Messenger friends, John is waiving at me...

Looks normal, but wait a minute...

How does Messenger know that I'm about to stop watching videos and go to the church to practice playing the organ?

I have a feeling that Messenger watches me and when I feel like I'm fed up with the phone, it starts to send me these notifications. I'll tell you what's happening:

John has hired some of the students who were eating at the same cafeteria I was in to take turns of watching me. And as soon as I was done with the phone they were supposed to message back to John saying that I'm about to leave.

"Get back to the phone. Messenger is paying me to keep you on the app."

Or maybe it was this way:

My church organ was fed up with me playing his pipes, forcing the air go from the bellows to wooden wind canals into the windchests.

"I'm sick of you touching my keys and pedals with your greasy fingers. That's it! I'm calling John to wave at you and keep you focused on the phone. I'd rather have woodworms eat my wooden pipes than you touching my keys again..."

"Yes I'm talking to you! Wave back at John now!"