A man walk up to a ticket counter in Kings Cross Station.
MAN: (In a bunged-up voice) "Firt clah ticket to Nottin'am, plis."

TICKET GUY: "Sorry, sir?"

MAN: "Firt clah ticket to Nottin'am, plisss!"

TICKET GUY: (produces a packet of sweets) "You should try these, sir. New cherry menthol Tunes!"

MAN: "Why? Will they cure my Down Syndrome?"