Hi-Lifts can be dangerous. About 8 years ago I was using one to jack an old trailer off of the bumper of my parents truck. With a lapse of judgement I had only blocked one wheel and the trailer was stuck pretty well on the ball. Once it came off it jumped off the ball and landed on my left hand which was stupidly resting on the bumper beside it. It broke my ring finger and crushed off half of my pinky, coming to a rest on top of my hand. The worst part about it was I had to use my right hand to drop the jack get it back under the tongue and lift it back off the bumper. After a two hour drive to the hospital and the ability to only count to 9 1/2 now
I learned my lesson. I agree with everyone on here hi-lifts when used can be one of the best tools you can use out there, or one of the deadliest.
2000 4runner SR5
Hood scoop, 265/75/16s