I work alone in a small auto repair shop I own. Today, while lifting a car on a Rotary brand car hoist one of the hydraulic lines burst. I will say thank God for the safety stops built into the hoist, they saved the car and possibly me. The moral of the story...check the safety stops on your lifts. I cannot count how many times over the years that I have seen the safetys bypassed or broken in shops or garages. I have never had 1 close call till today!