Senan was my first cousin and a lifelong close friend. I was privileged to count him this.  My daughter first met Senan at our house when she was in her late teens.  She asked me beforehand what he was like - I said he was the wittiest, quickest, sharpest-brained individual I had ever met, with a delightful sense of humour, and little inclination to take himself or this strange world in which we live too seriously.  She told me afterward that that was an excellent rendition. 

Enda Hardiman