Back in the day, Darrel Waltrip had a squirrel named Led Belly who was trained to jump on the chassis just before crossing the scales.
Led Belly was also capable of hanging on the left side of the chassis during qualifying in order to gain more of of offset weight than the rules allowed.
Tragically, Led Belly took the weight manipulation to an extreme. Hr swallowed some Tungsten pellets that he couldn't digest, and he lost his life.
Please sign the online petition for Led Belly to be indicted into the Nascar Hall of Fame.