However, you go to take the third plate off the right side of the bar - remember that you still have three 45 lb plates on the left side of the bar - and you suddenly have a cartwheeling barbell (see Figure 1). The right side of the bar rotates upward, the left side rotates downward, plates fall off in a loud (and dangerous) crash, the bar rotates end-over-end, and the entire room (people, equipment, walls, windows, etc.) is in danger.
If you’ve trained long enough or been to enough powerlifting meets, you’ve seen it happen at least once, it’s a disaster whenever it happens, and nearby people can and do sometimes get injured in the process if they get hit by the falling plates or flying barbell.
When You’re Most Likely to Make This Error
You can make this mistake when loading, but it is far more likely to occur when a lifter is unloading the bar.