I don't see any benefit in being outright rude. Maybe you don't respect the man, but certainly the office deserves the respect you would give to any visiting dignitary from a old friend of a country like the U.S.

OTOH, I like brucie's suggestion... maybe a welcoming meal of Canadian choice beef, served on some sort of softwood platter with a side of P.E.I. spuds. And serve it cold, telling him it was piping hot a couple of years ago when he was supposed to visit us last time.