>You write an email that says "Hey, can you please stop using my email address?"

>You send it to johnsmith@gmail.com

>You receive a new message, it says "Hey, can you please stop using my email address?"

>You're johnsmith@gmail.com, you only know that's the address that's being used

PD: I know that if he resets the password he can get the other address, but this scenario was funny in my head.