Ok. here it is. I rented a garage at the apartment i live in. I only have been driving the stang like once a week or less. So, i leave the negative battery cable unhooked as not to drain the battery from sitting there. Never had a problem till today. Good power, i push in the clutch and turn the key, it makes a weird pop noise and the whole car shuts off. But it never even cranked once! It just like zapped off! All battery power gone. They only way i could get power is if i disconnected the battery and hooked it up again. After three times of doing this, it finally started up like normal. WTF?? makes no sense to me at all.