I had that happen to me, except I was squatting. A cleaning lady came with a huge industrial sized vacuum and used it right on the side of the rack. I would have hit her with the bar had I gone down when she was there. I just racked it and walked off...pissed, but what are you gonna do? I don't think she spoke a word of english. If she would have hit that bar either on the way down, or on the way up, it would have been bad...for the both of us.