Adventures in risk assessment

found on Real Funny

Would you give him a ride? I mean, I know he's got an axe, but how many axe murderers are there really? I think most killers would use a different, more easily concealed weapon. 

And yet, I suspect no one is going to give him a ride. He'd probably have difficulty even without the axe because we look at him and weigh the potential risks against the potential good feeling of doing something nice for someone, and even the smallest risk now outweighs that good feeling these days.