Carl has a good ploy with telephone sales people. We now hardly ever get them calling.
What you have to remember is they get paid on results & often if you express any interest then your details are passed on to other direct sell companies.
Keep them talking & you get the satisfaction of wasting their time & making them lose their quotas. They are on an efficiency rating - the longer you can keep them talking the worse their rating is.
HOW? Express an interest in what they have to offer, then when they think they have you, tell them that the only way you can afford to buy their product is for them to buy something off you.
Ask for their credit card details as you'd really like to do business with them. He's tried to sell them everything from Coffins & Cemetary plots ( never tell them what you have for sale until the last possible moment) to discount catalogue goods 'we have everything you could possibly need so don't be afraid that you can't use up your £2-3000 which you want us to spend with you'.
It really works plus you get your own back & end the phone conversation on a high instead of getting annoyed.
Try it you might be pleasantly surprised.
Linda