When, in Victorian England, Colin Pullinger invented his 'Perpetual' mousetrap he wasn't kidding! Now, some 155 years later, an example of his invention is on display at the Museum of English Rural Life (MERL) and still living up to its name. Museum staff were suprised to find an unfortunate mouse in his trap - despite it being an exhibit, behind glass, in a cabinet. It is even more surprising that the mouse decided to look for a nesting site in the most inappropriate of pl