I always accepted more tough jobs than turned them away. I do a show and tell with the customer and explained the risks they are taking. But if it were my car and I would not attempt the fix I won't ask the customer to. Case in point. A guy brought me a old jaguar xj6. It had warning lights on the dash glowing, expired safety sticker, worn out tires and brakes, misfires, engine oil leaks, power steering leaks, a/c not working, headliner falling down, coolant rusty and leaking fuel injectors. I explained that the car was not worth any repairs.The guy hands me $1500.00 cash to start work,I handed the $1500.00 back to the customer saying to use it as a down payment on something else. A few weeks later the guy calls the shop asking for me. He said that I was right and that he should have listed to me. After he left my shop he went to another shop. They took his $1500.00 and another $2000.00. Two days after the other the shop fixed his car it caught on fire from the fuel leak and burnt to the ground for which he had no insurance.