[Jake.]

Both are in the wrong. Harry should have realised that ALL housemates apart from him and Aaron put effort into the task so the shopping budget was everyone's. It was clear that some people would get annoyed by the fact that the 500 quid that they earned had gone on bananas and food colouring. The way Jay reacted however was completely inappropriate. He ignored the fact that them bananas would be feeding the house for the next week. And the ketchep thing is just spiteful, especially after himself and harry had seemed to resolve their differences.