Cold callers phoning up and asking how you receive you TV signal

[tg1]

ask them for the company name they are calling on behalf of and the advisors name as you will be contacting ofcom and bt about the nuisance calls. that usually ensures they hang up sharpish

or tell them to 'koff

[Dan_GTi8v]

or do what my mate did and talk in a foreign language

english usually is a foreign language to most of them