I am sure that made them feel good and didn't even hurt thr poor widdle cwiminals feeeelings.
How about this. The warden says "Don't throw food"
If they do it anyway, they don't get anymore food.
When they do it again, they are beaten with batons to bloody pulp and stuck in isolation for a month.
I think they should continue to get three meals a day!
Oatmeal for breakfast, oatmeal for lunch, and left-overs for dinner.