Call someone and say, "This is Avon calling. Would you like to buy some shampoo that bubbles and bubbles and bubbles …" until they hang up. Then push redial, as soon as they answer say, "And bubbles and bubbles …"
If you're talking on the phone with someone, and you don't like them or something like that, say, "Tell me if this sounds like a phone hanging up," and then hang up.
Telemarketer: "Hello, would you like to take advantage of our low rate credit card today?"
You: "Yes, that is if you can overlook my chapter 13 bankruptcy."