I was listening to a comedian on a podcast today.
He said that years ago when he was struggling, as an experiment he put out a clasified ad in the "pets for adoption" section saying "6-month-old Beagle puppy. Will be put to sleep if not adopted."
Then he set his voicemail outgoing message to say "This is John, if you're calling about the puppy, I already killed it, leave a message after the beep." He was hoping to get a lot of angry messages he could use as material or something. But out of 30+ phone calls, nobody left a message. But he did get a lot of distressed exhales of air on the recordings before people hung up.