Phone etiquette primer: if you need to talk to me and you call on my cellphone, you wait for me to answer, not immediately hang up after the first ring in hopes I'll call you back. It's rude as all fuck. And I'm not gonna do it, especially if I don't know the number you're calling from. I should waste my money to find out who the rude fuck was who doesn't want to waste their money to talk to me exactly why? If you don't want to spend the money then obviously it's not that important. Send a text message if you really need to talk to me and you're low on money on your cellphone, for fuck's sake.