I have come across quite a few drivers that have a problem staying right; fortunately, none of my encounters had the same outcome as the poor guy in the link.
http://www.startribune.com/local/114450354.html?elr=KArksLckD8EQDUoaEyqyP4O:DW3ckUiD3aPc:_Yyc:aUnciaec8O7EyUsl