Debt management calls
I get loads of these automated calls from services claiming to sort out your debts, press a button to speak to an operator etc, where I'm sure they'll take down plenty of details, credit cards etc. I never answer the calls, but my answer phone sadly gets filled with them.
I can't do anything about it though, even with the Telephone Preference Service, because they all come from International numbers where UK laws have no affect. They are however British accents and clearly targeted at a UK audience.
I can see how some might fall for it too as they spout stuff about government debt schemes which is enough to make some people think it's official.
Wish there was a way to send an electric shock back up the line to callers you object to. Even if it just blows up their damn automated dialler.
Anyway, my answering policy is simple... is the number one I recognise? If yes, then answer, if no or withheld then simply leave it to the answer machine. If they really have a need to speak to you they leave a message. Most don't. That just leaves the damn automated crud.