Function to jump out of a event?

Is there a function/command to jump out of an event? For instance, lets say that when a particluar thing is TRUE, you want the event to just skip the rest of the code inside it.

touch_start( integer num )
{
   if ( this == TRUE )
   {
      LEAVE_EVENT();
   }
   // other commands to execute
}

I realize that in this example, I could just put the other commands inside else {}, but I'm just wondering if such a thing exists. Could I use return() where it says LEAVE_EVENT or some equivalent?

just use return;

ty