Some years ago, I was flying a red, white, and blue Decatalon out of Petaluma airport in northern California when I asked Oakland Center for some information:

Oakland Center:
"N12345 — are you flying a red, white, and blue airplane?"

Me:
"Don't tel me you now have colored radar!"

Oakland Center:
"Naw. I fly the Decatalon out of Petaluma, too."

Myron MacNeil
via e-mail