Sometimes when I go into the bathroom and there's a big spider which takes me by surprise I scream. Sometimes when I'm hanging washing on the line in the garden a bee will buzz very close to my ear, and I will scream. At these times it is wonderful to know that while the rest of my family are rolling their eyes, muttering under their breath and basking in their sense of their own superiority, there is one in my household on whom I can rely.