I went out to start my car last Friday, and nothing happened. The battery had lost connection somewhere. When I popped the hood latch, suddenly I had a good connection again. I pulled the battery cables off and cleaned them and the posts. Put them back on and everything was fine until this morning. Go outside, car won't start, pop the hood, car is good to go. Should I be looking for a bad ground? If so, should I look somewhere around the hood latch? Has this happened to anyone before?