What's wrong with this picture? 001

This photo is a charmer and it is posed to look accidental.  I see only one cat has had a chance to take a lick.  That means the camera was at the ready.  The milk puddle doesn't look like any spill I ever made with far flung tiny drops in some direction.  Instead, it has neat boundaries as if carefully poured onto the floor.  The bright yellow mug is bone dry!  It was laid on its side to complete the composition.  Yet, I love the picture and the four creatures are doing something that comes naturally.  They aren't trying to lie to me.  But the photographer is deliberately making one thing look like another thing.