I was switching winches because my old one broke, so i had to unhook it from the battery. i forgot to re-tighten nuts on the battery. Im driving along and all the lights on the dashboard flicker and the speedometer dies the engine stayed on, but 1 second later it all came back on. this happened at least 30 times in my 15 minute drive. At that point I knew what had happened, and i felt stupid. But it was funny after i realized how stupid i was.