I would say telemarketer. They can reach you any time of day or night and call from randomly generated numbers. You have to be home for the JWS to visit. Both van be ingnoted by not answering though.
I'm really glad that I took Spanish in high school and lost most of my native accent when speaking it. "Lo siento, señora, pero no entiendo lo que me está diciendo." "Do you speak English?" "No." *click*