I was leaving a bar 5 or so years ago and someone who was pretty clearly a college kid approached me and asked for money. When I said "sorry", he told me he wouldn't leave me alone unless I said "no". It was a very safe area, still light outside, and I had had a few drinks, so I decided to have fun with this. I told him that I was going to go out of my way to avoid that word completely. We walked for about 2 miles talking back and forth before I finally slipped up and said "no" in a sentence. He immediately said "alright, have a good day" and walked off. So it turned out to be an entertaining walk home and the kid got to stop by another bar after he bugged me for a while. I think it was win-win for both of us.