Missing porridge

Today year 1 were making porridge as part of their Goldilocks and the three bears topic. They made some for Mr Condon, Mrs Rollings and Mr Sherwin but the porridge was too hot so they put it in the classroom to cool down. When they came back after play they saw that someone had eaten the porridge and Mr Sherwin's porridge was eaten all up!
Can you help us investigate what happened?