Elevator Etiquette

I can do without assholes who don't understand elevator etiquette: if you're coming in wait till people get out, if you're a delivery person and your cart is larger than the elevator don't try to cram it in when there's 20 people in it, and don't talk on your cell phone; you don't get reception anyhow, the conversation always goes like this "Yeah, I'm getting on the elevator because I'm a badass and I have a zillion dollars, and I rule the wor...hello? Hello? Can you hear me?"