The Washington Post:

In a typical call, the robot keeps the telemarketer on the phone for a few minutes, but in some cases they go on for much longer. The robot does this by cleverly exploiting a flaw in the telemarketer playbook: staying on the line if the person is agreeable. So the system leans on “yeah,” “sure,” “okay” and “yes.” In one instance the robot kept a cable company on the line for 22 minutes.

Yes, please.