Skip to bbc.co.uk search Two British people describe the shock and devastation caused by the the powerful earthquake which struck the city of Padang on the Indonesian island of Sumatra.    Being grumpy raises my blood pressure and I usually make wrong decisions when I am grumpy.    I am generally a very grumpy person, but I have definitely noticed my decision making and general awareness is far higher than that of my friends who are normally much happier, jollier and generally carefree.