This scene is an 8-year-old.
My friend(F) got his first mobile. First featured mobile.
Maximum smartness in that mobile was a snake game and Bluetooth.
So I decided to prank him.
M: Bro do you know this particular model need a network to use Bluetooth?
F: I am not stupid to believe you.
M: I can prove that.
F: K prove me, I will give you treat.
M: ok, turn on your Bluetooth paired it with my Bluetooth.
F: Ok
*start sending him the movie. We were on the train, a train was about to enter the tunnel*
M: When the train will enter a tunnel, We will lose network and sending will fail.
F: ok let's see.

*when a train enters in a tunnel, we shift light to black in meantime for 3-4 sec our eyes feel blindness. so I closed eyes before entering a tunnel and once train enter in the tunnel immediately restart Bluetooth *

M: look sending failed
F: Seriously man, I didn't know that.
M: It's ok bro next time inform me before buying any electronics.
F: sure
M: my treat?
F: Yup

*for next few days, he was thinking that Bluetooth need a network to send files until whole group laugh on him*