Caller: "Hi, this Steve from Annoying Windows, can you spare a couple of moments to here about our great deals?"
Reciever:"umm, not right now. Can I call you back later, I could do with some new windows" (adjust for any product mentioned)
Caller: "Of course the number is 0800 123456"
Receiver:" Ok, so what was your name again ?"
Caller: "Steve Butt"
Receiver:" what time do you leave the office ?"
Caller: "6pm sir"
Receiver:" Oh, I will not be free before then, tell you what, what’s your home number ?"
Caller: "ummm I don’t want to give that out sir"
Receiver:" Why is that ? Don't you want people you don’t know ringing you up at home ?"
Caller: "ummmm"
Receiver:" hello"
Caller: *click"
And that’s how its done, give it a try the next time you get a call from someone selling anything.

The 5 Best Parts of Melissa Joan Hart's Horrible Failure of a Kickstarter
The 10 Best Ways to Ask Someone to Prom
"Is It Just Me or Do I Look Asian?" No, You Do Not.
Angry Amazon Reviews of Adorable Dog Costumes
Almost Reading
The Troll
Humor Us
TLDNR
Regret Everything
The Graphic Truth
CollegeHumor Interview
Twidiots