When you buy a concert ticket these days, you know you’re going to have to deal with certain things at the venue — it might be obstructed sight, or an imperfect sound mix, or just the noise and jostling of your fellow music fans. What you don’t expect, however, is to end up at the hospital with a cervical neck sprain after paying $100 to see Black Sabbath.

But that’s what happened to Cindy Glaser, the woman who ended up in the hospital after being trampled by gate crashers at Lollapalooza on Friday (Aug. 3) — and now she’s blaming poor security at the venue. “If there were kids who wanted to break in, they should have been stopped before they had a chance to hurt us,” Glaser argued to the Chicago Sun-Times. “Instead, I spent the evening in the emergency room. I couldn’t move, all because these kids were being irresponsible and there wasn’t anyone there to stop them until after I was hurt.”

Added Glaser, who was hit from behind after the gate crashers broke through a double fence and a row of porta-potties, “I had a reasonable expectation of safety there. We weren’t in a mosh pit. We weren’t close to the stage. We were very far away. We weren’t anywhere near where we would expect to be injured. If there’s that many kids able to break in and hurting people jumping off these port a potties, there needs to be some extra security around the perimeter. I didn’t see any security.”

But for Bob O’Neill, the president of the Grant Park Conservancy, what happened to Glaser was an isolated, unfortunate incident. “I would prefer to have no incidents of gate crashing. But, it’s almost impossible to have zero incidents when you have 270,000 people on 120 acres over three days given how spontaneous and quickly they do it,” O’Neill argued. “There was a lot of security. The double-fencing really helped. It was eight-feet high throughout the perimeter. It’s hard to get over two fences quickly. It’s unfortunate the person was injured. But overall, I’m satisfied. Little or no landscaping was destroyed.”