In one of my sessions 5 yrs ago, I early apex-ed 8A and was WAY out of position for 8B. Rather than over-correct and possibly spin, I decided to ride over the gators and straighten out 8B. There was a tremendous metal sound and I thought I'd torn something off my car. Took it easy for the remainder of the lap and everything was OK so I sped back up. Looking for any parts next time thru 8B, I see there was a metal drainage grate that I'd run over. Kind of made me feel better, but not really. NEVER early apex 8A.
Of course, the track photographer saw my miscue and caught several frames of it.