Hidden talent: I could save your life if you were drowning! I was actually a qualified lifeguard around the age of 20 (but if you don’t carry on training the qualification expires, which is what happened to me when I started my phd).
Secret obsession (although not so secret any more!): I don’t like my food to get too mixed. Especially flavours that I don’t think should go together! Those all you can eat style buffets are the worst because everyone ends up putting strange food combinations together on one plate! Noooo!