A Heckler will try to ruin your routines by saying stupid stuff in the climax or middle of an efect
Hecklers want to make you look like a fool infront of others
They always think they know whats going on an will tell everyone around
They will take your cards and shuffle them
They will also challenge you
If you give up to a Heckler you will look weak and bad to the ladies around
What you should do is a routine that they can never figure out.
to make them look extra dumb
I do Brian tudor's Wrong answer
Ask them "whats the name of this card" {the 2 of diamonds}
"Its called the Ace Of Clubs"
then do A control to the bottom and ask them "were do you think the card is"
{its on the top} "ah no its on the bottom"
Bring a Blank card and ask "is this your card" {no}
Then color change it
these simple little tricks usually shut the Heckler
"As a performer, there is nothing better than turning the whole room against a Heckler.
It is crucial to force the Heckler off balance as early as possible, so that he is always one step behind every move, and is constantly playing catch-up.
When all the sleights are solid,
and the moves hit hard and are thrown out quickly like a precision boxing combination, it is impossible for anyone,
let alone some sorry Heckler, to get a piece of you.
You are playing a game of catch me if you can, and he can't. "
http://www.youtube.com/watch?v=iBXfSwIRzQA