I’d tell him to screw himself, but I don’t know if he’d remember how!

From The Caucus at The New York Times (from March 16,2007):
The unthinkable has happened. Senator John McCain met a question, while sitting with reporters on his bus as it rumbled through Iowa today, that he couldn’t – or perhaps wouldn’t – answer.
Did he support the distribution of taxpayer-subsidized condoms in Africa to fight the transmission [...]