Thank you bfrank & 410. I'm a little perplexed as to why that needed to be explained.

In the mid 90s I failed a fuel tech running indoor karts in Marion,OH. A tech fail is a tech fail so obvious DQ in stock light. We moved on w/ no impact to my running a couple Yamaha classes, my brother who owned the karts, nor his participation in an open class w/ another driver. Same day or future. Later that day we took the fuel can over and had it tested. Turned out the vendor used the wrong can so the previous fuel residue caused the sniffer to go nuts. The vendor made it right though. We got free fuel out of it so it wasn't a complete loss. lol

Sorry. Long winded way to explain why such a harsh and broad penalty that sites ONE specific event baffles me.