Very fortunate for you. I grew up on a ranch using a hi lift to all sorts of things (some of which I am sure it was not intended for). I.E. rotating a vehicle 180 degrees by picking up the rear and pushing the vehicle sideways. As long as you keep your wits about you, be aware of the potential energy (like Herbie mentioned) and employ (the not so) common sense you should be "fine".I have a scary hi-lift story that was completely user error. When I was 17 (first problem), I had a full sized blazer with 35s. Got a flat one day and, of course, I had my hi-lift because all of the cool kids carried them. Didn't want to bend a bumper or scratch anything so I stuck the jack into the receiver for a trailer hitch. Lifted both rear tires off the ground and pulled the flat off. I had to get close with my legs under the vehicle to lift the 35s. About the time I was doing that, the jack started leaning. Thank God my brother was there with me. He saw it tilt and warned/grabbed me and I got my legs from under it before the axle smashed the concrete and shattered the back window. I was really stupid and really lucky that day.