In case you haven't realise drivers have the ability to change the fleetnumber on the ticket machine. Some drivers do it as a prank to wind up enthusiasts to send them on wild goose chases etc.

Bus Times reported one of the Toon Tour double deckers on a school service today, not sure how true that is or not.

But there has been plenty of cases in the past, Solo SR number 641 posing as 7157 comes to mind.