Yellow Cab Company owner Jay Graves said the messages are a company tradition. The taxioms are kept on hand and randomly applied to cabs. Although the Graves family keeps an eye out for clever wisecracks and one-liners, they say it is difficult to find sayings that are both witty and short. The biggest problem with putting slogans on the backs of cabs is the limited space, which often dictates which slogans can appear and which must be revised or cancelled altogether. The amusing taxioms apparently are attracting plenty of attention.
People call all the time.
But the Yellow Cab Company keeps no record of which cab sports which slogan, so it is usually impossible to send a particular taxiom to a customer, he added, chuckling. You can't read it from inside the cab, anyway. Occasionally, the sage words stir up conflict. Yellow Cab's phones were ringing with both angry and supportive comments. The taxiom phenomenon is so unusual that outside media have picked it up.