I've failed plenty of squats before back when I used to do powerlifting, and it's not scary at all. You just let the bar go (i.e. release your grip and let it r

I've failed plenty of squats before back when I used to do powerlifting, and it's not scary at all. You just let the bar go (i.e. release your grip and let it roll off your back), and fall backwards after it. You might end up with a bruised ego, but that's pretty much it. I have seen a newbie fall forwards though, and that can be scary and dangerous. But they fell forwards because their form was horribly wrong.