Big rig. Black, unmarked, black-painted trailer. No visible identifiers. Mud over the license plate. Anyone who's ever seen The X-Files knows there's something sinister going on.
Corporation blonde in a red Miata, dodges and weaves, top down, wool scarf and hair flying in the wind. Smiles as you pace her the whole long commute. Peels off at the final exit before yours, waving a jaunty wave goodbye.
Sticker in the rear window of a Hyundai Alantris: "My Dog is smarter than your honor student."