Muddy car escape

[mystories]

My mom and I came out to our car one time, to find it completely blocked in by other cars. She was pretty unhappy about this, but realized that it would be possible to get the car out by driving over the low curb. She had me do this, presumably because she imagined I'd have better luck doing nonstandard things with cars. When we had it free, she didn't get in the car, but stood there with a peculiar look on her face.

"Open the trunk," she asked me, grinning maliciously. We then proceeded to take the spare tire out, dip it in a nearby mud puddle, and roll it over the offending car twice, leaving muddy tracks. "Let 'em figure THAT out", she exclaimed as we stowed the tire and drove away. My mom is normally quiet and polite, but every so often something drives her to show another side of her personality.