That is a very poor guess. If you get stuck, the last thing you want to do is try to then press the bar back over your head while simultaneously dropping down. What if you miss, where does that leave the bar? Sitting on top of your head while your face makes contact with the ground. If you fail, the bar always goes backwards (behind you) while you hopefully go forward. Try searching youtube for videos. You could always buy or make a pair of sawhorses as well, but realize it is not an ideal solution.