My grandma has found a very good alternative. She will answer and after 20s, will say: "Sorry, I have to go fetch a (tissue, glass of water, …)" Then she'll si

My grandma has found a very good alternative. She will answer and after 20s, will say: "Sorry, I have to go fetch a (tissue, glass of water, …)" Then she'll simply leave the phone on the table and will go gardening/watching TV. The guy on the other end will be very pissed of after having waited uselessly 10 minutes and will never call again.