Thanks Sveltje! GOTTIT!!! <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />

Great puzzle <img src="/ubbthreads/images/graemlins/smile.gif" alt="" /> I must admit that I had some help from my wife. For the past few minutes I'd been telling her the story and my questions and answers. "Hmm" she said <span class='standouttext'>Spoiler : </span><span class='spoiler'>"it must be something that a gun and a glass of water might have in common"...</span>

A few minutes later she burst out laughing and said she'd got it. <img src="/ubbthreads/images/graemlins/ohh.gif" alt="" /> and that it was indeed very simple. It took me a few more seconds, and no more clues, but then I got it too.

Thanks for your patience and hard work. Got any more please?

Answer:
<span class='standouttext'>Spoiler : </span><span class='spoiler'> Hic! </span>