I've often wondered why someone would buy a bright yellow extended-cab pickup. I've seen the guy that drives that truck. Sometimes when I'm getting out of my car to go to my apartment, he'll pass me on the way to his yellow truck. He has a ponytail and a Rottweiler. A thick, black Rottweiler that appears friendly, but you know isn't.
Color is a sensation, existing only in our minds.
The vast array of colors we see are merely interpretations of certain wavelengths of electromagnetic energy. They don't really exist as we know them. Where we see a particular color, we actually see the absence of that color. I watched him drive recklessly through the underground parking lot on the way to his space, music blaring from the rolled down windows of his bright yellow truck, singing out loud to the songs. I've overheard him talking to the security guard while he lets his dog poop on the tiny strip of grass in front of the building.