Okay so I was reading fun things to do that probably make you look mentally insane and I found one that suggested.

"Call someone and when they answer tell them you can't talk."

Omg I did it.
I called my friend, with his mother's phone. (Because he is the one who usually answers) 😂

Here is exact dialogue

Friend: ...hello?

Me: I'm sorry I can't talk right now

Friend: but you call-

Me: *hangs up*

Okay so afterwards he called my father's phone and I answered it saying

"I'm sorry I explained that to I can't talk right now."

XD I am so mean