A friend of mine recently told a story about a flat track racer who, like many people, would keep debris out of the multiple velocity stacks by stuffing them with shop rags. To make a very long, and entertaining, story short; more than one rag got sucked into the engine when they fired it up.
In the end it was all for naught...after hours of picking out rags in the pits the driver promptly turned right instead of left in the first turn.
You can’t win for losing.
These instances are one of the reasons I spend far too much time trying to find a single washer, bolt, or nut that I drop but never seem to hear hit the garage floor while working under the hood.