title: How to detect that my object is completely inside a box?
body: <p>I'm developing a game that you drag and drop objects into boxes and I have no idea what's the best and most efficient way to detect whether my objects are in a box.</p>
  
  <p>I'm well aware of colliders and I'm using BoxColliders and triggers to find out whether my object is touching a box but I want to detect the moment when my object (which we can assume to be sphere for sake of simplicity but later will be a mesh) is completely inside my box trigger/collider.</p>
  
  <p>I read about "Contains" method of colliders but IIRC they just check if one single point inside that collider but I'm interested to know if the whole object is inside the collider.</p>
  
  <p>Thanks in advance folks.</p>