title: How to cancel properly?
body: <p>I'm going to create a scenario before I ask my question. 
  Say you have a form with a start button, then when the user presses it a message box pops up asking if they want to continue and the options are yes or no. 
  When the user presses no the program should stop what its doing, return to the form and clear the text boxes/combo boxes/etc.</p>
  
  <p>Now here's my question, upon selecting "no" how does one go about stopping the program from going into further code? For the code to stop what it's doing and return to the form like nothing happened?</p>
  
  <p>I hope I explained myself well enough...</p>
  
  <p>Nevermind everyone I realised where I went wrong... Crisis averted. Thanks for all of your input however!</p>