I still remember the major mistake I made at a HS invite at Hughes. At the time (mid-to-late '80s), the pole vault pit was along one of the sidelines. I missed my first two jumps because opening height was 9' (it was a major invite, not a regular season meet) and I hadn't even made the frosh/soph regular opening height of 7'6", so I got desperate on the last one. I committed the cardinal sin of pole vaulting: I moved my hands up the pole without adjusting my start point on the runway. That meant that my plant step was way under what it should have been based on my hand hold; I went up...and then came down the same way. Fortunately, I caught the front edge of the pit on the way down, or I'd have been going home in an ambulance. And with the pit being where it was, it was directly in sight of the stands in the vicinity of the 50 yard line or so.
I guess that's balanced by the time I held chains on the visitors sideline the year the Sacramento Sirens played there. I'd rather have been on their side, of course....