This isn't a big problem but you may want to take a look at it the next time your changing your oil or having it changed. Today when I backed out of the drive, I saw a dark spot on my otherwise squeaky-clean garage floor. :evil: Got out and checked and sure enough, oil was there! Checked the car over this evening and found the plug used on the oil filter/water outlet was just slightly more than hand tight.
Tightened it up and next time I change oil I'm removing that plug and giving it a healthy dose of Permatex. Thought the rest of you might want to know.