Here's a test you all might like to fail

I did. It's respected psychologist Robert D Hare's psychopathy test. You can find it here if you want to test yourself or someone else

misleading link removed

I took the liberty of performing it on two well-known role models and, to be fair to them, gave them a zero score for the questions I didn't know the answers to ie. sexual promiscuity and criminal convictions. Even given that advantage, both David Cameron and Tony Blair were diagnosed as high-scoring psychopaths.