Phone advertizing???

I was awakened yesterday after a hard working day at around 9 o'clock.....So I answered the phone and it was a salesman very polite guy who wanted to sell me something....Here's how the conversation went....
Ring!!!Ring!!!(phone ringing)

Salesman--Hi! How are you sir! Sorry to bother you but we are doing a survey in your area and you are on our lucky guess list!

me--Really...Hum! Listen I am very busy could you leave me your personnal phone number?

Salesman-- Well I can't do that!

Me--You mean that you don't want to be disturb at home!

Salesman--Yes sir you're reading my mind!

Me--Yes but you are not reading mine!
And I hung up the phone!!!