I have been personally berated by Al Gore. He even said f**k twice in the very single sided conversation. I was only 20 at the time so I was a little scared... Until the two secret service guys with me gave me some "insight" about Mr. Gore, and the Clinton's (this was in the latter 90's,so you can imagine the subject matter).
Never thought those guys had a sense of humor until that day. The whole story is pretty darn funny, but pretty long.