This is called "puppy-dogging". You want to sell a puppy. The customer isn't sure he wants to shell out the money. So, you say, "Take the puppy home, and it's

This is called "puppy-dogging". You want to sell a puppy. The customer isn't sure he wants to shell out the money. So, you say, "Take the puppy home, and it's free for two weeks." It's obvious from there.