call waiting: if you don't have it, get it
Seriously. What the hell. This is not nineteen hundred and six. I don't care if your gramma doesn't like to be put on hold. If you're reading me on the internet, a modern convenience, you better damn well have call waiting.
Busy signals are for people living in the shrubbery of some far off land and I pity those poor unfortunate souls. Now you stop making me hit redial all damned morning, you hear?
Happy Festivus.