The hard starting problems of diesel engines in below zero / freezing temperatures are generated by two factors. One is the initial cold air being drawn in to the turbocharger and compressed in the engine?s cylinder head. The second is the fuel itself, is also cold and also this sub zero / freezing temperature fuel is sprayed to the cold engine?s combustion chamber, where it mixes while using cold air drawn thru turbocharger. The story shocked me more than usual because I know my buddy is a pretty good martial artist. He is often dubbed as 'talented' by his colleagues and superiors. What's wrong your story? In theory, he would have wasted the thief in no time while he clearly had no weapon with him. According to him, he couldn't know how to handle it. He knew how he could subdue such assault but he just couldn't know what to do immediately. Agoraphobia