I had changed the brake booster on my Jeep on my own, but the brake lights wouldn't shut off. I figured I installed it wrong or there was a problem with the part I used. Many shops would have pushed to sell me a new booster plus the labor, but Bill took the time and realized that my brake light switch was broken, and it only cost $26.00 to get my car back on the road.
Not your typical grease monkey shop.