Why has your chinchilla started kicking food out of her dish?

They do it accidentally, so get a heavy bowl.

But sometimes, it does it with purpose.

The one I have, when it got spoiled, grabbed his bowl and threw it down from cage 3rd floor and emptied the contents of the bowl when it wanted a treat. I got extremely pissed and did not give it anything until it ate up the food that lay on the floor. Now it's not spoiled anymore... LOL