A few years ago at this bar, my mate just passed me £20 to get a pitcher whilst he went to the little boy's room.
Some guy next to me says :
Hi, you alright?
Me: *Looks at him blankly*
Him: Don't worry, I'm not a freak!
Me: *takes pitcher and walks away... slowly.. but surely*
That freak line has to be the best I've heard, but scary at the same time!