I used to stock for a western auto in college- years ago. People would bring in their cars, (and receipts from other shops) and tell us they couldn't understand why the "check oil" light was on since they just had it changed down the street. We would find oil everywhere because the filler cap was missing, or the fill plug half-out. We found tools lying around under the hood, and people driving V8s with only 7 plugs in it after a "tune up." It really was shocking. The worst though- was when my girlfriend (now wife) took her car to the dealer for a 60,000 mile check-up (no longer in warranty). I explicitly told her DO NOT LET THEM REPAIR ANYTHING WITHOUT TALKING TO ME. She drove the car home and said they told her she needed a new radiator as it was leaking. I popped the hood and found her lower hose leaking. I ALSO FOUND A SHARPENED SCREWDRIVER LYING ON THE PLASTIC FLOORPAN! Now- I only goto a mechanic by referral. Good advice for anyone. -J