You yawn and pull open the door. Whoever it is, it better be important. On your doorstep is a strange looking person in a purple tuxedo, carrying a large tray of cookies. Their snazy suit is spotless, and the cookies look good. But then again, now isn't really a desireable time for door-to-door salespeople.

"Care to try a cookie? They're fresh, and onehundred percent free!" says the cheerful purple-dressed salesperson.

They give a large hearty smile, but in an unsettling way.

Try a cookie Do not try a cookie