Trevor Lock week as the British National Party (BNP). He disproved Descartes' maxim "Cogito ergo sum" by tipping a glass of water over his head, horrifying the front row of the audience. In 2009, Trevor Lock performed a warm up show for the Edinburgh Fringe Festival at a fundraiser for Boxmoor Cricket Club. He had two shows in the 2009 Edinburgh fringe; a stand up show called "Some Kind of Fool" and a play titled "The One and the Many" Lock presents a live comedy night 'Trevor Lock's Philosophy Society' at the Ku Bar in Lisle Street near Leicester Square. In early
Cogito, ergo sum one's belief in their own existence would be secure, for there is no way one could be deceived unless one existed in order to be deceived. But I have convinced myself that there is absolutely nothing in the world, no sky, no earth, no minds, no bodies. Does it now follow that I, too, do not exist? No. If I convinced myself of something [or thought anything at all], then I certainly existed. But there is a deceiver of supreme power and cunning who deliberately and constantly deceives me. In that case, I, too, undoubtedly exist, if he deceives me;