As a matter of fact I have entertained that thought several times...she drove it home it was overheating, when I open up the radiator overflow there was the oil water mixture. The dip stick looks like it is mixed but not as lite. My problem is that it happened a couple of months ago and I walked away from the car...I did not drain it or try to restart it. Pretty dumb for such a nice car but I was not happy at all. I took the valve cover off and front hoses as well. I just assumed the head gasket was blown....Next step??