Portsmouth, Sheena Ives

Sheena Ives is the hostess for the evening. Her mixed Scottish/Mexican menu consists of a trio of Scottish salmon as a starter, chicken fajitas, guacamole and jalapeño cheese sauce as the main course, and Scottish cranachan for dessert. Although Sheena's menu is now a known to her guests, something that isn't is her occupation, which she has not yet mentioned to the others but to which she leaves clues around her house for them to guess. Will the guessing game leave her guests inspired or bored?