title: Laravel Spark : Limit amount of Teams per user to 1
body: <p>I'm currently playing around with <code>spark</code> for <code>laravel</code>. I'd like to limit the amount of teams per user to 1. So basically I wantto forbid to create new teams or join other teams. I found the </p>
  
  <pre><code>CanJoinTeams Trait
  </code></pre>
  
  <p>But I'm actually not sure where to keep looking for changes. I'd love if someone could tell me where I have to look at and where I could overwrite necesseray functions.</p>