Show Us: The Strangest Yellow Caution Flags Thrown In Racing

"Was that invisible debris?" and "I think the officials may be hallucinating in those hot helmets this year" seem to be common laments of NASCAR fans, giving way to conspiracy theories galore about NASCAR throwing flags just to spice things up. So show us: what are the most bizarre caution flags thrown in racing? » 3/23/15 6:05pm Monday 6:05pm