title: How could I change code that decrements a number with x = += -(int)Settings.ABtn; so that x could never be less than zero?
body: <p>I have a property in my class:</p>
  
  <pre><code>public int Points { get; set; }
  </code></pre>
  
  <p>At some point it's being set to less than 0 but I am not sure where.  I suspect it is in this code:</p>
  
  <pre><code>phrase.Points += -(int)Settings.ABtn;
  </code></pre>
  
  <p>How could I change this so that Points could never be set to less than zero? </p>