So earlier today I met up with a friend at a nearby parking lot. As soon as I left he called me saying that all the oil in my car just spilled out, and to come back because the screw that keeps all the oil in the oil pan was in a 4qt puddle of oil on the GROUND. So basically I had to learn how to change my oil on the spot, which luckily wasn't hard to do at all. So I'm guessing that the person who changed my oil last didn't tighten the screw enough and left it loose. Sigh... I didn't think one could mess up something as simple as an oil change...but that's why from now on I'm doing everything to car myself...