I have family members that call with their number blocked, so I have to answer as well. Occasionally, I have fun with it. Last year, we were getting constant robo-calls from some credit card lower your rate, blah, blah place. After a few days of it, I pressed "1" to talk to a person and said, "Look, I don't any credit cards..", CLICK. They hung up on me. OOOOKKKKAAAYYY. I can play that game. Next time they called, pressed "1" and let out a primal scream as soon as a person picked up. I think the neighbors heard me...across the street.

It worked. Five minutes later, a blocked number calls the house and a woman's voice says "You're an asshole" and hangs up. But they didn't call back...MISSION ACCOMPLISHED BEOTCH!

Another fun one was the tech support scammers that call and tell you your computer has a virus. I wasted twenty minutes of that jerkoff's time playing the "dumb PC user" before telling him he was a crook and to never call back.