Similar experience at a Who concert in 73, a number of years before actual loss of life.
Philadelphia Spectrum, outward opening doors and festival seating. Guards yelling "get back!' as they tried to open the doors outward, back into the crowd. Picked right up off my feet and moved 10 feet. DO NOT fall down in a crowd like this.
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"The last time I had a "good suprise", I was 5 and it was my birthday"