"Hi! John's answering machine is broken. This is his refrigerator. Please speak very slowly, and I'll stick your message to myself with one of these magnets."
"Greetings, you have reached the Sixth Sense Detective Agency. We know who you are and what you want, so at the sound of the tone, please hang up."
"Hello, this is Sally's microwave. Her answering machine just eloped with her tape deck, so I'm stuck with taking her calls. Say, if you want anything cooked while you leave your message, just hold it up to the phone."
"Hello, you are talking to a machine. I am capable of receiving messages. My owners do not need siding, windows, or a hot tub, and their carpets are clean. They give to charity through the office and don't need their picture taken. If you're still with me, leave your name and number and they will get back to you."
"This is not an answering machine - this is a telepathic thought-recording device. After the tone, think about your name, your reason for calling, and a number where I can reach you, and I'll think about returning your call."
"Hi, this is George. I'm sorry I can't answer the phone right now. Leave a message, and then wait by your phone until I call you back."
"If you are a burglar, then we're probably at home cleaning our weapons right now and can't come to the phone. Otherwise, we probably aren't home and it's safe to leave us a message."
"Hi. I am probably home. I'm just avoiding someone I don't like. Leave me a message, and if I don't call back, it's YOU."