A Conversation With An Irritant!

I really don't get it. Why do these blooming people who do surveys and researches have to call me at odd hours with questions that require that I stop whatever I am doing in order to answer them?
Here is a narration of one such conversation which took place recently.
Griiing, griiiiiing, griiiiing....
"yebo?"
"Good evening, sir, I sincerely hope I am not calling at an inappropriate hour..."
"I am fine. Who are you by the way and what do you want calling me at such a time?"
"Please, we are doing a social survey and we would like to ask you some questions"
"Very good. But first I have a few questions of my own.
Tell me, what is the meaning of the dream I had last night? Why doesn't my boss realise that I deserve more money than I am being paid ? Why are most mothers-in-law so horrible?
Why can't I also have a Ferrari like the guys in Hyde Park? By the way, why does my tummy have to growl when I don't need to be reminded that I am hungry?"
I also need serious answers to the many questions I have, you know! Squid pro quo, I will answer all your questions if you tell me why the C++ code I wrote last week is giving me crappy answers"
"Explain to me the mathematics of why the earth should necessarily be round. When does the dead get to know that they are dead? Explain to me why some people get screwed by the 419 schemers. Explain why some people still enjoy listening to Boney M. Explain why the universe is so huge if we humans are the only intelligent Beings around. When do you think the current global recession is coming to and end"
"Are you still there? Enlighten me on these issues and perhaps I will decide to consider answering your questions." " Whilst you are thinking about my questions, I would like to take 5 minutes of your time to go to the loo."
After the 5 minutes, I return to phone to a dropped call.
"Hello , hello , Helloooo, are you there...."
Hopefully I won't ever receive another inconvenient call from these irritants.