"I'm eating nothing"

I was sitting at my computer desk yesterday and B opened the door to the office, said "I'm eating nothing", and then walked out and closed the door. As you can see from the picture he was obviously eating something.

I followed him out of the office where he proceeded to put himself on the naughty step and said "Sorry, Mom". I guess now my kids are disciplining themselves. After looking around for a while I found the source of his chocolate beard. Under the table was an open container of Nesquick which he was eating by the spoonful. I need to get a lock for the pantry.