I use to date a mechanic a long time ago and I still remember the one time he was doing something on my car and asked me to look at something under the hood. After he asked me how many times has a mechanic asked me to do that and i said pretty well all the time. Well I was informed that that was just so they could look down my top while I was leaning forwrd.
I already knew the price of the air filter and the one that they wanted to install was going to cost me double the price. I am glad that I am not a total idiot and can do some maintence on my car.