Preferably never
*Phone rings*
Me: Hello
Market Researcher: Hi my name is <forgotten>, I'm calling on behalf of <company> and we're doing a survey into past times and activities in your local area for your council...
Me: Urmm, I'm actually at work at the moment
MR: Ok, when would be a good time to call back
Me: Preferably never
MR: Thank you for your time
Me: Bye
*Hang Up*
May 2nd