Niall FitzGerald, former chief executive of Unilever and current chairman of the UCD Michael Smurfit Graduate Business School. Photograph: Aidan Crawley

There was a period where Niall FitzGerald spent a fair amount of his time poking around strangers’ houses in foreign countries, opening their fridges (...)

Viking Jaw bone and helmet from the Weymouth atrocity. Photograph: Anthony Devlin/PA Wire

The Vikings may have been the best boatbuilders of the 10th century, but their personal hygiene left a lot to be desired. “They are the filthiest o(...)