Yes - spotter is good.
For my home gym I have a safety cable set-up hung from the floor joist’s when doing presses.
My friend leaves the collar locks off and if he gets in trouble just tilts the bar and drop the plates on one side, then the bar tilts to the other side and drops those plates.
I’ve never tried that...
I never put the collars or clips on when I bench. Of course I don’t bench nearly what I used to (205 on last set, progressive sets) and I haven’t tipped weights off the side of a bar since I was an awkward teen in jr.high school
But I have on a few occasions got stuck at the bottom of a rep without a spotter. I carefully rolled the bar down my to my belly and lap and sat up, then rocked into a standing position. Suffered no injuries although I was a little sore in the mid-section.
I would never be a strength coach. I don’t do safety by the book. Oddly enough, I have never injured myself badly while lifting.
My friend leaves the collar locks off and if he gets in trouble just tilts the bar and drop the plates on one side, then the bar tilts to the other side and drops those plates.
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A colleague was doing squats with two plates (135 lbs) when one plate started to slide off. He warned everybody in the gym and we stood back. When the plate slid off, the bar (45 lbs) flew about 15 feet and crashed on the floor. Nobody was hurt and we just went on with our workout. Newton’s third law in action.