No, you certainly can't.
Who: John F. Kennedy
context: This was said in reply to Nellie Connally, wife of Governor John Connelly, commenting "You certainly can't say that the people of Dallas haven't given you a nice welcome, Mr. President."[12] He was assassinated moments later.
Oh my, I must admit I didn't know that one!
--
http://img.imgcake.com/cosplaygifer.gif
http://en.wikipedia.org/wiki/TORtanic