A footprint that mysteriously arrives on your dashboard as a result of certain nightly activities in your car/truck. These nightly activities are also known as "driving in your car".
Also a hardcore rock/punk/metal/funk/ska/jazz/progressive band with music that will rock your socks off in every direction, perhaps causing a welling up of emotion inside you that can only be cured BY "going for a drive" and POSSIBLY creating some of your own dashboard footprints.

The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.