I have fun with robocalls. When I hear the little "boip" sound that tells me it's a robocall, I give them 130 decibels of a personal alarm into their headset. The personal alarm cost me about $15 and has given me pleasure and satisfaction many times over. If I don't get the "boip" sound, I answer in Spanish and this has helped to cut down on the robocalls too. If you don't speak a second language, just make one up. It's fun.