Rather like asking the driver if HE has a ticket!
Off topic I know but an agency employee acting for ScotRail demanded to see a ticket from the driver of the 16:00 GNER Edinburgh to London service. The said driver refused (tbf he was a bolshy sod and was in a state of undress - no tie, no jacket, no name badge &c..) and in turn was himself refused access to the platform. Cue a circa 10 mins delay.