Ok, no offense to you guys, but the line "the first time is magic, the second is a lesson/education doesn't work with hardcore hecklers. They ignore it, and keep begging to see it again and keep searching you. My advice is to stop asking for A line, and ask for like four lines to say, and methods to walk away without being rude or whatever. Thats also something to seriously consider, just walk away from hecklers. They attract attention more than anything else, so if they keep on you'll have a group of people around you b4 u no it. Hecklers are rude to you, so its not rude to be rude back to them. If you aren't dealing with hecklers though one line is fine, and that line i mentioned will work fine too.